In the bustling 19th‑century metropolises, a wave of immigrants reshaped New York, Liverpool, and Glasgow, sparking fierce competition among religious and ethnic groups. Amid this turmoil, criminals discovered that teamwork made their illicit enterprises easier, giving rise to the infamous 10 deadly street gangs that ruled the Victorian underworld.

10 Deadly Street Gangs Overview

10. The Rip Raps

Taking their name from a notorious shoal in the Hampton Roads, the Rip Raps dominated Baltimore in the 1850s. The gang was adamantly anti‑Catholic and anti‑immigration, a stance that eventually prompted them to back the equally nativist Know‑Nothing political party.

And by “support,” we mean they rioted and torched the Democratic headquarters (ironically housed in the New Market Fire Company Buildings). Democrats trying to flee were seized and battered in a gruesome melee that left two dead and many injured. The Know‑Nothing candidate ultimately won the election.

The episode set the stage for the 1856 presidential race held a month later. Former president Millard Fillmore, the Know‑Nothing nominee, swept the state—its sole victory—yet the Rip Raps’ unchecked power soon attracted opposition. Mayor Thomas Swann, elected with their help, pushed to curb their violence and used his office to found a professional police force and fire brigade. By the next election, the gang had faded into history.

9. Peaky Blinders

Legend has it that the Peaky Blinders earned their moniker from flat caps fitted with razor blades along the brim. While the exact truth of that tale remains murky, the gang that inspired the BBC series Peaky Blinders was undeniably real.

Born in the poverty‑stricken streets of Birmingham in the late 1800s, the Blinders were just one of several rival crews jostling for control. They plunged into massive street brawls that could rage for hours as rivals fought for dominance, while simultaneously running protection rackets against anyone who seemed vulnerable.

What set them apart was style. The Blinders were instantly recognizable by their silk scarves, crisp trousers, and impeccably trimmed caps. Like many gangs of the era, they recruited boys as young as twelve or thirteen, who showed up in arrest records armed and ready for a fight.

8. The High Rip Gang

The High Rip Gang prowled Liverpool’s dockside districts in the 1880s. In January 1884, a Spanish sailor’s brutally beaten and stabbed body was discovered, echoing murders linked to a decade‑old local gang. A 17‑year‑old laborer was convicted and hanged, yet the High Rips kept operating.

Peaking between 1884 and 1886, their reach stretched across the city’s poorest neighborhoods. Victims—mostly sailors, dockworkers, and shopkeepers—were either slain or left with severe beatings and permanent disfigurements. Their preferred weapons were heavy belts and knives nicknamed “bleeders.”

The High Rips emerged from an earlier outfit called the Cornermen, who waited on street corners for prey. Unlike their predecessors, the High Rips were highly organized and ruthless, always armed. Police often chose to stand aside rather than risk a violent clash.

After 1886 their activity waned, but the gang lingered through the decade. Some historians even suggest connections between certain members and the infamous Jack the Ripper.

7. The Deansgate Mob

While most histories spotlight adult conflicts, the late‑Victorian era also saw a surge of youth crime. Recent research uncovered that Manchester ranked among the bloodiest English cities for teenage gangs, largely due to John‑Joseph Hillier’s Deansgate Mob.

The Mob claimed the music hall “the Casino” as its headquarters, regularly brawling anyone daring enough to step onto their turf. Hillier joined at fourteen, and by the time he rose to leadership, the Mob was entrenched in Manchester’s centre. He served jail time after assaulting rivals with a butcher’s knife, and street fights—called “scuttles”—became routine. Reporters christened Hillier “King of the Scuttlers,” a title he proudly stitched onto his shirt alongside the sharp belt buckles that defined scuttler fashion.

6. The Forty Thieves

New York earned a reputation as a gang‑ridden city, and the Forty Thieves were among its earliest crews. Around 1825, pickpockets and petty thieves who frequented a rundown vegetable and rum stall realized they could increase their loot by banding together.

For over a quarter of a century, the mainly Irish outfit imposed a quota system: members had to turn in a set amount of stolen goods or face severe punishment. The penalties were ruthless—even the wife of the gang’s first leader, Edward Coleman, was beaten to death for missing her quota. Coleman was later hanged, but the gang survived, recruiting younger “Forty Little Thieves” as apprentices and lookouts.

For many, the gang offered a way out of the crushing poverty of New York slums. Some members even forged political ties, aligning with the powerful Democratic machine Tammany Hall.

5. The Bowery Boys

The Bowery Boys, perhaps the most famous Five Points crew, existed in several incarnations throughout the 19th century. Their legend is tangled with tall tales, making it hard to separate fact from fiction.

By the 1840s, plays at New York’s Bowery theater dramatized the larger‑than‑life figure Mose Humphreys. In reality, Humphreys likely ran protection rackets with his faction. At the time, fire brigades were gang‑run, and rival brigades often fought each other at fire scenes. Humphreys eventually met his match in a fire‑fight and later fled to Hawaii to continue his racket.

Beyond the gutters, the Bowery Boys wielded political influence, championing the “little guy” against elite politicians and turning polling places into battlegrounds. Their leader Mike Walsh died in 1859, prompting poet Walt Whitman to write an obituary praising his passion and heart.

4. The Dead Rabbits

The Dead Rabbits were the sworn enemies of the Bowery Boys. By the mid‑1800s each gang boasted over a thousand members, guaranteeing that any clash turned into a legendary showdown.

The name allegedly originated when a dead rabbit was tossed into a meeting of the Roach Guard, a predecessor faction. “Dead rabbit” slang for a fight‑starter, the term stuck as the breakaway group adopted it.

The Rabbits aligned with the notoriously corrupt Tammany Hall, often policing polling stations to ensure votes went their way. In 1857 they played a key role in the massive Fourth of July riots, where estimates of the death toll range from eight to a hundred and involve roughly 5,000 gang members battling for days.

They resurfaced in the even bloodier 1863 Draft Riots, which only ended when federal troops suppressed the mob. The carnage claimed countless lives, burned homes and an orphanage, and left an indelible scar on the city.

3. Rocks Push

In 1870s Sydney, “pushes” divided the streets, and the Protestant‑led Rocks Push became one of the largest. Their rivalry centered on the city’s Catholic “larrikins.”

Their crimes ranged from theft to harassing dockworkers, and women in the gang acted as decoys. The rivalry climaxed in 1871 when Catholic leader Larry Foley challenged the Rocks Push head to a bout. Foley, trained by the Canadian boxer “Perry the Black,” battled the Push leader for a staggering 71 rounds before police intervened. Defeated, the Push chief handed control over to Foley.

Over the next two decades, the Push faded as law‑enforcement cracked down on gang‑related rapes and murders. The name resurfaced briefly in the 1950s when a collective of writers, artists, and filmmakers adopted it, embracing gambling, horse racing, and public art to defy the conservative establishment.

2. Glasgow’s Penny Mobs

Glasgow’s reputation for toughness extended into the late 1800s, where the “penny mobs” roamed the streets. These gangs staked out territories and robbed anyone they deemed a suitable target.

The moniker “penny mob” emerged because offenders were often fined a single penny rather than jailed, and the gangs were said to beat and rob victims for nothing more than a penny. Their makeup mirrored New York’s Irish‑dominated gangs, as the city swelled with Irish immigrants fleeing famine and poverty.

Although Glasgow was largely Protestant, the influx of Irish Catholics sparked sectarian violence. Many of the penny mobs formed in response to this tension, targeting Irish immigrants and turning financial gain into a religious battleground.

1. The Mandelbaum Gang

Frederika Mandelbaum, known as “Marm,” set up shop in New York around 1864 and spent two decades building a respected crew of thieves, pickpockets, and bandits who trusted her to pay fairly for their loot. Modern estimates place the value of stolen goods at roughly $200 million.

Mandelbaum’s success stemmed from her loyalty to her thieves. She kept a law firm on retainer for any member caught by police and routinely bribed officials to look the other way.

Uniquely, many of her operatives were women. Marm championed women who wanted more than domestic chores, even opening a school to train future female pickpockets. She also owned warehouses for stolen merchandise and ran a three‑story haberdashery that hosted dinner parties for New York’s elite, where the décor often featured pilfered silverware.

When you think of the Wild West, Hollywood’s glittering legends – the Wild Bunch, the Dalton Gang, Billy the Kid’s Regulators – probably spring to mind. Yet there’s a shadowy roster of outlaw bands that never got a silver‑screen makeover. This top 10 fascinating roundup shines a light on those forgotten crews, the ones whose deeds still echo in dusty trail stories and hidden treasure lore.

Why This Top 10 Fascinating List Matters

10 The Rio Grande Posse

The Rio Grande Posse, operating in the 1870s and 1880s, earned the alternate moniker John Kinney Gang after its commander. Kinney, a former U.S. Army soldier discharged in 1865, turned his martial experience to a life of cattle rustling and highway robbery. Among his ranks were future heavy‑hitters like Jesse Evans, who later formed his own outfit, and Charles “Pony Diehl” Ray, who eventually rode with Curly Bill Brocius in the infamous clashes against the Earp brothers.

Kinney’s gang carved its most dramatic moment in 1878 when it threw its weight behind the Lincoln County War, directly opposing Billy the Kid’s Regulators. Legend has it that Billy managed to shoot off part of Kinney’s ear during a ferocious gunfight. After the war, some men stayed loyal to Kinney, while others defected to Evans’ new gang, reshaping the outlaw landscape of New Mexico.

The posse’s downfall arrived in 1883 when Kinney was apprehended for cattle rustling. By the time he secured his release, his compatriots were either dead, imprisoned, or scattered. Rather than return to crime, Kinney re‑enlisted for the Spanish‑American War, closing the chapter on a notorious outlaw career.

9 The Bummers

The Colorado Territory’s criminal tapestry includes a low‑key crew known as the Bummers, led by the boisterous Eddie “Shooter” Coleman. Unlike the high‑profile rustlers of the era, the Bummers were a rag‑tag collection of loafers, petty thieves, and chronic drunks who set their sights on the mining settlement of Auraria, now part of modern‑day Denver.

Operating in a legal vacuum—Auraria had yet to be formally incorporated—the Bummers exploited the lack of law enforcement. Their nighttime antics involved loud revelry, heavy drinking, and a barrage of celebratory gunfire designed to intimidate respectable townsfolk and assert their dominance over the fledgling community.

Their reign of mischief culminated in the infamous “Turkey War” of Christmas 1859. After the Bummers pilfered a farmer’s wagon brimming with birds meant for holiday feasts, the outraged townspeople formed a vigilante posse. A violent clash ensued, resulting in the death of one Bummer and the lynching of several others. The surviving members fled, their criminal chapter effectively closed.

8 The Innocents

The Innocents occupy a murky spot in Montana’s gold‑rush history, alternately painted as a savage highway gang or as unwitting pawns of a ruthless vigilante faction. Their story hinges on the disputed legacy of Sheriff Henry Plummer, who allegedly led the group in a spree that claimed over a hundred lives before a self‑styled justice squad put an end to their reign.

According to the classic narrative, the Innocents preyed on gold‑laden travelers, robbing stagecoaches and murdering anyone who crossed their path. Plummer’s corruption allegedly enabled the gang to operate with impunity, culminating in a wave of executions where members—including the sheriff—were hanged from trees after swift, sometimes non‑existent trials.

Modern historians, however, question the cohesion of this supposed gang. While records confirm a spate of robberies and murders across Montana during the 1860s, concrete evidence linking them to a single organized group remains thin. Moreover, the alleged victims were allegedly dismembered, buried, burned, or dumped beneath ice, yet none of their remains or stolen treasure have ever been recovered.

The narrative persisted largely because it was chronicled by respected contemporary sources, notably Thomas Dimsdale, Montana’s inaugural newspaper editor, whose work The Vigilantes of Montana cemented the tale. Even today, the story sparks debate; during a 1993 posthumous trial of Plummer, the jury deadlocked 6‑6, resulting in a mistrial that underscores the enduring ambiguity surrounding the Innocents.

7 The Jennings Gang

The Jennings Gang offers a cautionary tale that not every outlaw can thrive in the lawless West. Formed by former attorneys Al and Frank Jennings, the group briefly attracted attention by recruiting the erstwhile Wild Bunch member Richard “Little Dick” West. Their criminal career, however, spanned merely a few months in 1897 before collapsing under the weight of their own incompetence.

Based out of Oklahoma, the Jennings attempted a series of robberies targeting trains, general stores, and even a post office. Their luck was abysmal: one store yielded a meager $15, and a train heist resulted in an empty safe being blown up. The gang’s bungling culminated in swift arrests, with only “Little Dick” managing to escape before meeting his own violent end a year later.

Al Jennings’ story took an unexpected turn after a five‑year prison stint. Granted a presidential pardon in 1907, he pivoted to politics, securing the Democratic nomination for Oklahoma County attorney in 1912 and campaigning on a platform of transparency that openly referenced his criminal past. Though he lost the election, his notoriety landed him in Hollywood, where he appeared in over two dozen silent films, including the 1914 biopic Beating Back. He later threw his hat into the gubernatorial ring, finishing third in the Democratic primary, cementing his legacy as a multi‑faceted, if not entirely successful, public figure.

6 The Red Jack Gang

The Red Jack Gang prowled the Arizona frontier in the early 1880s, preying on stagecoaches that traversed the San Pedro River corridor. Their charismatic leader, “Red Jack” Almer, earned his nickname from his striking ginger hair and a pallid complexion that gave him an almost ethereal, sometimes feminine, appearance.

Among their daring exploits, the most celebrated was the August 10, 1883 robbery of a Florence‑Globe stagecoach hauling a Wells Fargo strongbox brimming with gold. Almer allegedly boarded the coach as a passenger to verify the presence of valuable cargo, then either slipped away before the heist or stayed on board to signal his accomplices. A colorful legend adds that Almer, leveraging his delicate looks, once donned a dress to masquerade as a woman, further deflecting suspicion.

The loot—thousands of dollars in gold—vanished without a trace, fueling endless speculation. However, the gang’s success attracted relentless pursuit. Lawmen, including Sheriff Bob Paul, a confidant of the famed Earp brothers, tracked the outlaws, culminating in a gunfight that claimed Almer’s life and marked the gang’s eventual dissolution.

5 The Ketchum Gang

Tom “Black Jack” Ketchum, pictured above, launched his criminal career alongside his older brother Sam in the mid‑1890s. Their notoriety surged with rumors linking them to the 1896 disappearance and presumed murder of Texas Senator Albert Fountain and his eight‑year‑old son, Henry. A bloody confrontation that same year saw the brothers ambush a store owner, Levi Herzstein, whose posse suffered a fatal casualty before the outlaws escaped.

As the Ketchum Gang expanded, they turned their sights to trains and stagecoaches, recruiting future Wild Bunch members such as Ben “Tall Texan” Kilpatrick and Harvey “Kid Curry” Logan. In 1899, Sam led a successful train robbery without Tom, but a pursuing posse forced a ferocious gunfight that left several gang members dead, including Sam himself.

Undeterred, Tom attempted a solo train robbery, only to be recognized by the conductor, who blasted his right arm off with a shotgun. Captured and sentenced, his execution turned into a macabre spectacle when the rope snapped, causing his head to detach in front of a stunned crowd—an ending as theatrical as the outlaw’s life.

4 The Dodge City Gang

Unlike many of its contemporaries, the Dodge City Gang set its sights on political domination, seeking to control the burgeoning town of Las Vegas, New Mexico, through a blend of corruption, intimidation, and outright violence. Their reign lasted only a few months in 1879, but during that window they wielded considerable influence.

The gang was led by Hyman Neill, better known as “Hoodoo” Brown, who parlayed his reputation as a gunslinger into the position of justice of the peace, promising to eradicate corruption while secretly installing his fellow outlaws into official law‑enforcement roles. Joe Carson became chief of police, “Mysterious” Dave Mather took the deputy marshal post, and Dave Rudabaugh served as a regular policeman.

Carson’s tenure was cut short when he fell in a shoot‑out, and the gang’s criminal activities—robberies and intimidation—continued unabated. Eventually, deputy John Sherman rallied an honest contingent of men, catching the crooks in the act. Most were arrested; Mather was acquitted and later built a fearsome reputation before vanishing from the record. Hoodoo Brown, though not directly implicated in the robbery, was driven out of town by an angry mob aware of his machinations.

3 The Jack Taylor Gang

Active across the Arizona Territory and into Mexico during the mid‑1880s, the Jack Taylor Gang earned a fearsome reputation for brutality and lightning‑quick draw speed. Their most chilling feat involved a single train robbery that left four passengers dead, followed by separate incidents that claimed the lives of four additional crew members.

The gang’s downfall began in 1887 when leader Jack Taylor was seized by Mexican Rurales and sentenced to life imprisonment. The remaining members—Manuel Robles, Fred Federico, Geronimo Miranda, and Nieves Deron—fled back to Arizona, drawing the attention of Cochise County Sheriff “Texas” John Slaughter. Slaughter’s posse raided Robles’ brother’s home in Contention City, where a gunfight resulted in Deron’s death and Robles, though wounded, escaped to regroup with Miranda and Federico.

The trio’s final chapter unfolded later that year. Robles and Miranda were killed in a shootout with Mexican Rurales, while Federico, after shooting a deputy sheriff, was captured and swiftly hanged. Their violent saga sealed the gang’s legacy as one of the era’s most ruthless outfits.

2 The McCanles Gang

The July 21, 1861 showdown at Rock Creek Station, Nebraska, entered legend as the McCanles Massacre. Some accounts describe three men defending themselves against a vicious outlaw gang, while others argue the McCanles Gang never truly existed, suggesting the three men perpetrated cold‑blooded murder to erase a debt. Regardless, the incident cemented Wild Bill Hickok’s early fame.

David McCanles, owner of the land on which the station sat, allegedly led a trio—including James Woods and James Gordon—to collect payment from station manager Horace Wellman. When Wellman could not furnish the full amount, McCanles purportedly turned violent, attempting to kill the manager. Hickok and another stock tender, Brink, intervened, resulting in a shootout that left McCanles and his two associates dead. Hickok faced murder charges but was later acquitted.

A competing narrative, recounted by McCanles’ 12‑year‑old son Monroe, claims his father and his men arrived unarmed and were gunned down without provocation by Hickok, Wellman, and Brink. The story adds that Wellman tried to crush Monroe with a hoe, missed, and the boy escaped, underscoring the event’s contested nature.

1 The Reynolds Gang

The Reynolds Gang remains shrouded in mystery, yet its tale is undeniably captivating. Formed by Confederate soldiers Jim and John Reynolds, the outfit targeted stagecoaches traversing Colorado’s Kenosha Pass, occasionally resorting to bloodshed. Some historians argue the gang operated under Confederate orders, siphoning loot to fund the Southern war effort.

By July 31, 1864, a determined posse caught up with the gang, sparking a gunfight that claimed one outlaw’s life while five others were captured. Only John Reynolds and Jack Stowe evaded capture, fleeing into New Mexico. The captured men’s fate is contested: official reports claim they perished during a botched escape, yet Confederate sympathizers allege they were chained to a tree and executed on Colonel Chivington’s orders—the same man behind the Sand Creek Massacre.

Seven years later, John Reynolds partnered with Al Brown. After a deadly shootout left Reynolds mortally wounded, he allegedly whispered the location of his hidden treasure to Brown. The latter searched Mount Logan, but a landslide had altered the terrain, concealing the loot forever. Treasure hunters continue to scour the area, hoping to uncover the long‑lost bounty.

The Wild West, also known as the Old West, was the era of American frontier expansion stretching from the late 1800s into the early 20th century. While today many picture it as a romantic backdrop for movies, the reality was a gritty tapestry of violence, lawlessness, and relentless ambition. In those turbulent decades, a host of shadowy groups emerged, each carving out a reputation for brutality, daring heists, and sometimes astonishing cleverness. This list shines a light on ten of the most obscure yet undeniably powerful gangs that prowled the frontier, many of which have been eclipsed by the more famous outlaws of popular lore.

10 Obscure Powerful Gangs Overview

10 Soap Gang

The Soap Gang sprang to life in 1879 when Jefferson Randolph Smith II, better known in the annals of crime as Soapy Smith, gathered a cadre of smooth‑talking con artists in Denver, Colorado. Their hallmark was the infamous “Prize Package Soap Sell” scam, where glossy bars of soap were hawked to crowds with the promise of a hidden treasure inside. Of course, Smith always placed a planted participant in the audience who would buy the soap for a hefty sum, convincing onlookers that a fortune lay just beneath the lather.

The gang’s notoriety surged during the Klondike Gold Rush of 1897‑1899, as they drifted northward to the boomtowns of Skagway and Juneau, Alaska. There, they preyed on gold‑hungry prospectors and curious tourists alike, turning the simple act of buying soap into a lucrative racket. Their charismatic leadership and clever deception made the Soap Gang a household name among frontier swindlers of the era.

Their reign came to a brutal halt in 1898 when a vigilante group called the Committee of 101, led by Frank Reid, decided enough was enough. In a dramatic showdown at Juneau Wharf, Soapy Smith and several of his cohorts were gunned down, ending the gang’s con‑centric crusade and cementing their place in Wild West legend.

9 Dalton Gang

Formed in 1890 in Oklahoma, the Dalton Gang was the brainchild of four brothers—Bob, Emmett, Grat, and Bill Dalton—who quickly recruited hardened criminals such as Bill Doolin and the notorious George “Bitter Creek” Newcomb. Their daring exploits spanned train robberies, bank heists, and a reputation for ferocious gunplay that made them one of the most feared outlaw outfits of the late 19th century.

The gang’s most celebrated—and ill‑fated—raid occurred in 1892 at the C.M. Condon & Co. Bank in Coffeyville, Kansas. A sudden surge of armed townsfolk and lawmen turned the robbery into a chaotic shootout, leaving several Dalton members and civilians dead. Two years later, in 1894, their attempt to simultaneously strike two banks in El Reno, Oklahoma, ended in disaster, wiping out most of the remaining members and sealing their violent legacy.

8 Archer Gang

Operating across central Indiana and spilling into Illinois and Kentucky in the mid‑1800s, the Archer Gang was led by four brothers—Thomas, Mort, John, and Sam Archer. Their criminal résumé reads like a ledger of bank robberies, stagecoach ambushes, train assaults, and the occasional cattle rustling that left countless travelers trembling at the sight of their name.

Most of the Archer brothers were ordinary farmers and millers who turned to crime when hard times struck. Their violent spree claimed numerous civilian lives, especially in the Martin County region. The gang’s downfall arrived in 1886 when three of the brothers were captured in Shoals, Indiana; before a trial could begin, local vigilantes broke into the jail and lynched them on the spot, ending the Archer menace.

7 Reynolds Gang

The Reynolds Gang emerged in Colorado during the 1860s, spearheaded by brothers James and John Reynolds. Their brief but violent career captured public attention in 1864 as newspapers in the South Park area chronicled a string of daring robberies and murders, many carried out by seasoned ex‑Confederate soldiers who had turned to outlawry.

Because of their Confederate roots, the gang became the subject of numerous local legends about hidden treasure caches, even though their actual existence was relatively short‑lived. In the summer of 1864, a decisive raid resulted in the capture and subsequent shooting of the Reynolds brothers and many of their associates, abruptly terminating their criminal enterprise.

6 Rufus Buck Gang

Based in the Indian Territory—today’s Oklahoma—the Rufus Buck Gang formed in 1895 around the eponymous Creek Indian leader Rufus Buck, alongside Lewis Davis, Sam Sampson, and the Davis brothers, Maoma July and Lucky. Their notoriety stemmed from a series of brutal robberies, murders, and assaults that shocked the region with an unprecedented level of cruelty.

The gang’s claim to infamy surged in July 1895 when they stormed Fort Smith, brutally murdering the on‑duty marshal. Their reign of terror included rape, torture, and relentless intimidation, culminating in an August 10 capture that nearly turned into a lynching. Ultimately, each member faced trial and received death sentences at Fort Smith, Arkansas.

5 McCarty Gang

Helmed by Tom McCarty, the McCarty gang also counted his brother Bill and nephew Fred among its ranks. Their inaugural heist targeted the Wallowa National Bank in Enterprise, Oregon, and they soon expanded their criminal portfolio with a string of robberies scattered across Colorado’s frontier towns.

Despite their knack for evading lawmen, the gang met its demise in September 1893 when a civilian posse stormed a hideout in Delta, Colorado. A violent confrontation left the cashier dead and resulted in the shooting deaths of Bill and Fred McCarty. Tom escaped, only to later settle as a sheepherder in Montana before meeting his own violent end in a gunfight around the turn of the century.

4 Calton Gang

Often referred to simply as “The Cowboys,” the Calton family operated along the Mexican border in the late 1800s, establishing one of the earliest organized crime syndicates in the Southwest. Centered in Tombstone, Arizona, the Calton brothers—most notably William “Billy” Clanton—earned a fearsome reputation for cattle rustling, robbery, and murder.

Their most infamous clash involved a gunfight with rival outlaws that resulted in Billy Clanton’s death, a pivotal episode in the broader Earp‑Clanton feud. Though the gang eventually faded, the Clanton name remained influential in regional ranching circles for decades thereafter.

3 Ketchum Gang

Named after its charismatic leader Black Jack Thomas Ketchum, the Ketchum gang also featured his brother Sam and notable members such as Will Carver, Elzy Lay, and Ben Kilpatrick—who later aligned with Butch Cassidy’s Wild Bunch. Throughout the late 1890s, they specialized in a variety of robberies across small New Mexico towns.

One of their most daring capers unfolded in Folsom, New Mexico, where Sam Ketchum, Carver, and Lay executed a heist that netted roughly $50,000. A posse led by Sheriff Edward Farr pursued them, wounding Sam in a fierce shootout. While some members escaped to hideouts, Black Jack Ketchum was eventually captured in August 1899 and later hanged in Union County, New Mexico.

2 Daly Gang

The Daly Gang operated out of a saloon in Aurora, Nevada from 1862 to 1864. Founded by the notorious “Three‑Fingered Jack” McDowell and John Daly, they quickly became infamous for brutal beatings, murders, and a string of stagecoach and bank robberies that terrorized the gold‑rich corridor between Aurora and Carson City.

Their reign of terror ended dramatically after the murder of William R. Johnson, a crime that spurred nearby citizens to form a civilian committee. On February 5, 1864, this group stormed McDowell’s saloon, apprehended the gang members, and publicly hanged them outside Aurora’s Armory Hall, bringing a swift end to their violent chapter.

1 Mason Henry Gang

The Mason Henry gang prowled the San Joaquin Valley of Santa Cruz County, California, during the mid‑1860s. Though they masqueraded as Confederate partisan rangers, the duo—John Mason and Jim Henry—led a ruthless band of criminals who specialized in robberies, thefts, and murders throughout the valley’s southern reaches.

Their criminal résumé includes a high‑profile stagecoach gold heist and a series of murders that cemented their reputation as merciless outlaws, despite attempts to present themselves as political guerrillas.

The gang’s violent career concluded in September 1865 when a sheriff‑led posse engaged them near Panoche Pass. A fierce shootout resulted in the deaths of several members, including Henry and Showalter, effectively ending the short‑lived but terrifying Mason Henry operation.

From prison gangs and extortion rackets to neo‑Nazi cells, the United States hosts a wide spectrum of criminal groups and organizations. Though they rarely dominate headlines, these 10 notorious gangs continue to pose a serious challenge to the nation’s security forces, boasting membership figures that rival those of sizable multinational corporations.

10 Notorious Gangs Overview

10 Jewish Defense League

The Jewish Defense League has been labeled by the FBI as a far‑right terrorist organization. Founded in 1968 by Rabbi Meir Kahane, its proclaimed mission was to shield Jews worldwide from anti‑Semitic hostility. The group’s ideology blends Jewish nationalism, territorialism, and a willingness to employ force against perceived enemies. Over the decades, the JDL has been accused of numerous violent acts, ranging from bombings and assassinations to extortion schemes.

Primarily active in the United States and Israel, the JDL first entered the public eye during the 1970s with a series of high‑profile attacks targeting Arab interests both domestically and abroad. Its staunch opposition to the Soviet Union stemmed from the plight of Soviet Jews barred from emigrating to Israel. Despite a relatively modest size, the organization managed to attract a sizable following within the Israeli‑American Jewish community, thanks largely to its aggressive tactics.

9 13

Mara Salvatrucha, better known as MS‑13, emerged in Los Angeles during the 1980s as a protection group for Salvadoran refugees. What began as a community safety network soon morphed into a brutal criminal enterprise involved in drug trafficking, human smuggling, and a host of other illicit activities. Today, the gang operates across the United States as well as in El Salvador, Mexico, Honduras, and Guatemala.

The gang captured national attention throughout the 1990s and early 2000s, notorious for its ruthless use of machetes and other melee weapons against rivals. Although MS‑13 is relatively small in the U.S., with an estimated 6,000‑10,000 members, its Central American affiliates may swell to as many as 60,000 participants.

8 Vice Lords

Vice Lords Nation was founded in Chicago in 1958 as a community‑based effort aimed at helping African‑American residents overcome poverty and discrimination. Over time, the organization evolved into one of the nation’s largest criminal syndicates, maintaining chapters in virtually every major city and many smaller towns.

The gang’s operations span the Midwest and the South, with membership estimates ranging from 30,000 to 35,000 regular and associate members. Designated a criminal organization by the federal government, the Vice Lords have weathered numerous high‑profile arrests yet remain a powerful force, especially in Chicago.

7 Barrio Azteca

Originating as a prison gang within the El Paso correctional system in 1986, Barrio Azteca—also known as Los Aztecas—has expanded to include roughly 3,000 members across the United States and about 5,000 in the Juárez region of Mexico. Though not massive in size, the group has earned a reputation for extreme violence that frequently spills over the U.S.–Mexico border.

By the early 2000s, Barrio Azteca allied itself with the Juárez Cartel in a bloody conflict against the Sinaloa Cartel. While law‑enforcement actions, including the capture of leader Eduardo Ravelo, have weakened the organization, recent reports suggest a resurgence, particularly in Juárez, where the gang continues to engage in drug smuggling, money laundering, and extortion.

6 Mongols Motorcycle Club

The Mongols Motorcycle Club, founded in Montebello, California during the 1970s, has become a notorious outlaw biker group with a strong presence throughout the Pacific and Southwest United States. Chapters are spread across California, Nevada, Arizona, and additional states, and the club’s membership is predominantly Hispanic, though it also welcomes riders from other ethnic backgrounds.

The Mongols rose to infamy in the 1980s and 1990s, engaging in violent confrontations, most famously a 2002 shootout with rival Hells Angels members in Las Vegas. Despite multiple law‑enforcement crackdowns, the club persists, maintaining ties with Hispanic street gangs throughout Los Angeles and beyond.

5 Crips And Bloods

The Crips and Bloods are two rival street gangs that originated in Los Angeles. While the exact origins are debated, the Crips emerged around 1971 as a neighborhood protection group, prompting the formation of the Bloods in response to the Crips’ growing influence. Both groups have since evolved into expansive criminal organizations involved in drug trafficking, extortion, robbery, and murder.

The rivalry between the Crips and Bloods has sparked countless violent clashes over the years, driven by territorial disputes, reputation, and personal vendettas. Both gangs are instantly recognizable by their distinctive colors, hand signs, and graffiti tags.

The criminal enterprises of the Crips and Bloods have inflicted severe harm on the communities they infiltrate, often endangering innocent bystanders caught in the crossfire. Despite ongoing law‑enforcement initiatives, the two gangs continue to pose a major public safety challenge in many urban areas of Los Angeles.

4 Latin Kings

Latin Kings were established in Chicago during the 1960s, initially composed mainly of Mexican and Puerto‑Rican youths. The gang has since become involved in a wide array of criminal activities, including drug trafficking, burglary, homicide, identity theft, money laundering, and high‑profile assassinations of law‑enforcement officers across the United States.

The organization first attracted media attention in the 1980s and 1990s, linked to numerous murders and other violent crimes in Chicago. With more than 160 chapters and an estimated 20,000‑35,000 members nationwide, the Latin Kings rank among the largest gangs in the country, maintaining a strong foothold in cities such as New York, Los Angeles, and Miami.

3 Gangster Disciples

Black Gangster Disciple Nation—later shortened to Gangster Disciples—originated in Chicago during the 1960s as a merger between two rival groups led by Larry Hoover and David Barksdale, known as the Black Disciples and Supreme Gangsters. The organization is predominantly African‑American and engages in drug trafficking, extortion, and murder.

While the Gangster Disciples maintain a significant presence in the Midwest, especially Chicago and Detroit, they have also spread to the East Coast and the Southern United States. Recent estimates place their membership between 25,000 and 50,000 individuals across the nation.

2 Aryan Brotherhood

The Aryan Brotherhood began as a white‑supremacist prison gang formed in reaction to race wars with rival black gangs. Over the years, it has grown into one of the most feared criminal entities in the United States, with members often displaying Nazi‑style tattoos and other fascist symbols.

Although the group’s primary activities occur within prison walls, Aryan Brotherhood members also operate on the streets, participating in drug trafficking, extortion, and other violent crimes. While smaller than gangs such as the Mexican Mafia, the Brotherhood remains a potent force in the underworld.

Law‑enforcement agencies have long pursued the Aryan Brotherhood, but its rigid hierarchy and fierce loyalty make infiltration difficult. High‑profile arrests and lengthy prison sentences have been secured against its leaders, yet the organization continues to exert influence across multiple regions of the country.

1 Mexican Mafia

Also known as La Eme or Los Carnales, the Mexican Mafia ranks among the largest prison gangs in the United States, with a presence in more than 13 states. Established in 1957 in Southern California by former street gang member Luis Flores, many early members were leaders of Hispanic street gangs in Los Angeles and surrounding areas.

Today, the organization operates both inside and outside the U.S. prison system, engaging in robbery, extortion, assault, murder, and drug trafficking. Estimates suggest that the gang has roughly 350‑400 members incarcerated in U.S. prisons, complemented by tens of thousands of foot soldiers operating on the streets throughout California and beyond.

In the surveillance state era you might think the Golden Age of organized crime is over, but gangs are very much thriving – even some of the old ones. They’ve just adapted. While some still manage to evade the law, others are enabled by governments. And some are so embedded in the fabric of their society, they’re like de facto governments themselves.

Based on their revenue, membership, and/or global distribution, here ten of the most powerful today.

10. CJNG

The killing of Sinaloa Cartel capo Ignacio “Nacho” Coronel in 2010 left a power vacuum in the drug trafficking underworld, with rival factions battling for control of Jalisco. It was out of this frenzy that the Cartel Jalisco Nueva Generación (CJNG) emerged.

As its name suggests, the CJNG really is a new generation of Mexican drug cartel. For one thing, it’s highly resilient – continuing to expand despite the capture of multiple leaders and bank accounts. For another, it’s even more violent than its ultra-violent forerunners. Right from the beginning, Jalisco saw a spike in murders, missing persons, and mass graves. Victims included not only rival gang members (such as Los Zetas (“the Zs”)), but also police and public officials. Attacks were fierce and sophisticated, using machine guns and grenade launchers and even downing helicopters. To ensure all members are capable of the actions required of them, training for the CJNG involves kidnapping, torturing, murdering, and eating people – and new members may be as young as 12. At the same time, though, the CJNG reaches out to ordinary citizens with its PR campaigns.

Active throughout Mexico, the CJNG now has an international network including contacts in South and Central America, the US and Canada, Australia, Southeast Asia, and China.

9. Wo Shing Wo

The Wo Shing Wo has been steadily expanding since the 1990s when police started paying more attention. The gang has spread throughout Hong Kong as well as around the world with a significant presence in San Francisco.

It is, of course, a triad – a Chinese gang named for the unity of heaven, man, and earth. While the Wo Shing Wo is known mainly for its involvement in illegal gambling, triad activities also include: drug trafficking; protection rackets and extortion; wildlife smuggling; fraud and counterfeiting; loansharking; cyberscams; and money laundering. Not all their activities are illegal, however. Triads are also involved in legitimate businesses (nightclubs, casinos, bars, etc.) and even the production and distribution of movies. Triads simply exist to fill a gap in the market – or provide services the government doesn’t.

Today, Wo Shing Wo has over 20,000 members.

8. Black Axe

“Nigerian prince” scams may seem comically naive, but they’re only the tip of the iceberg. They’re part of an expanding global empire of crime, in which members share “formats” or blueprints for ways to rob people online. 

The most powerful of the cybercrime gangs originating from Nigeria is Black Axe – a cult-like organization involved in human trafficking and brutal murders as well. Members, called Axemen, coordinate online, sharing photos of recent killings and mutilations – usually of rival gang members. Internationally, their activities are thought to generate billions of dollars. In Canada alone in 2017, authorities uncovered a money laundering scheme worth more than $5 billion. And it’s not clear how many others exist; Black Axe is active in Asia, the Middle East, and Europe, among other regions, and is thought to have more than 30,000 members. This is thanks to their organization, such as splitting the world into “zones” – each with a local “head” to which “dues” are payable before revenue can be returned to Black Axe’s base in Benin City. In Italy, for example, the gang cooperates with the local mafia.

Now more than four decades old, Black Axe tends to recruit university undergraduates in Nigeria – many of whom, facing one of the world’s highest unemployment rates, are desperate for opportunities and contacts. Initiation (“bamming”) reportedly involves a symbolic death and rebirth — a savage naked whipping with bamboo followed by crawling between the legs of other gang members and emerging to songs and chants. With members in the Nigerian armed forces, academia, religious establishment, law enforcement and politics, Black Axe is extremely difficult to combat at home.

6. Sinaloa Cartel

Famously associated with the drug lord El Chapo, the Sinaloa Cartel is today the largest and most powerful of Mexico’s drug trafficking organizations. According to Fortune in 2014, its annual revenue is estimated to be upwards of $3 billion. But it may be much more, with operations in more than 50 countries. Unlike other cartels, which have branched into other areas, the Sinaloa cartel has remained firmly focused on drugs – especially cocaine, meth, heroin, and cannabis.

Because of its non-hierarchical structure, lacking any single leader or kingpin, the Sinaloa cartel has resisted efforts to destroy it. This is also thought to have facilitated its global expansion, with many local groups operating semi-independently around the world. Members are often bound, however, by blood relation or marriage. In fact, it began as an affiliation of farming families. Another characteristic of the Sinaloa cartel is its preference for non-violent solutions – preferring to bribe but still prepared to kill. This is in stark contrast to its number one rival today, the CJNG.

6. Camorra

Thought to be centuries old (older than Italy, in fact), the Camorra mafia controls the city of Naples. Such is its influence that Neapolitans, who call it “the system”, tend not to testify against it – as if it were the government itself. It might as well be; the gang provides not only work but protection to the people. It also owns much of the city through debt, dominating the lives of many citizens.

Membership includes 100 “autonomous clans” and around 10,000 “immediate associates”, as well as a larger base of dependent clients and friends. Annual revenue from combined operations (including in the Americas and Europe) was estimated in 2014 to be $4.9 billion. 

Contrary to popular belief in the rise of other gangs in Naples, Camorra is still in control of the city. Among its enterprises there are the piazzas or drug bazaars – fortified apartment blocks with dozens of lookouts and a clandestine system for exchanging drugs and money that makes police raids basically pointless.

5. ‘Ndrangheta

Long thought to be non-hierarchical or horizontal in structure, similar to the Sinaloa Cartel, ‘Ndrangheta is now known to have a single central kingpin, or capo crimine (“head crime”). In fact, this is the mafia associated with New York City’s real-life inspiration for The Godfather, Carlo Gambino.

Surrounding the capo is the ‘Ndrangheta’s governing body, the crimine. Below them are the “colonels”: the mastro generale (“general master”), capo societá (“head of the society”), and contabile (“accountant”). Then there are the ‘ndrine or clans – usually families of at least 49 members – in charge of local territories. The ranking system is closely tied to Catholic saints, and initiations are known as “baptisms”.

As of 2014, ‘Ndrangheta’s operations across 30 countries and 60,000 members were thought to generate $66.4 billion a year – or 3.5% of Italy’s GDP. That’s more than the country’s biggest bank UniCredit. And if ‘Ndrangheta were a country itself, it would make more money than Luxembourg.  Activities mainly include drug trafficking and “illegal waste disposal”, but also gambling, extortion, prostitution, gun-running, and counterfeiting.

4. Sun Yee On

Triads in China date back to the 17th century when they worked in secret to restore the Ming dynasty to power. Though unsuccessful in that aim, they continued to operate below the radar and, by the 1960s, triad membership in Hong Kong had grown to an estimated one-sixth of the population. 

Traditionally, triads are honor-based societies – an alternative to corrupt institutions. Sun Yee On, however, is a notable exception to the rule. Formed in the early twentieth century, members are solely interested in self-preservation and wealth. Though its main rival is Wo Shing Wo, for example, and fighting is common, it’s not above teaming up to make money. Similarly, in WWII, it cooperated with the Japanese.

By the 1970s, Sun Yee On had 47,000 members. In the 80s and 90s, it took over Hong Kong’s film industry, and today its influence extends to senior government officials. Its precise annual revenue is unknown but is thought to be hundreds of billions, in part because it controls 12% of the global heroin supply.

3. 14K

The 14K triad is thought to be the largest by far in terms of membership and has been active in Hong Kong since the 1940s. Officially, police attribute its resilience to its pyramid-like structure, its alertness to undercover operations, and the public demand for its services (which include heroin, illegal migration, and gambling).

Unofficially, however, the 14K and other triads are aided by government officials. This is nothing new; in 1984, CCP leader Deng Xiaoping openly expressed his willingness to work with organized crime – praising their patriotism and honor. In fact, triads have provided protection for CCP officials overseas. In return, the government ignores some of their more questionable activities, like the smuggling of drugs, wildlife, and people through the Golden Triangle “special economic zone” (SEZ).

As recently as 2020, former 14K leader Wan Kuok-koi (aka “Broken Tooth”) acted as a dignitary himself, meeting with the president of Bougainville in Papua New Guinea to discuss plans for a new SEZ as part of China’s ‘One Belt, One Road’ trade network.

2. Solntsevskaya Bratva

The Solntsevskaya Bratva (or “Solntsevo fraternity”) rose from the ashes of the Soviet Union to become the most powerful of the Russian mafias. Although it controls banks and businesses in Russia, it’s virtually invisible on the streets – so much so that some think it doesn’t exist.

Part of this is down to discretion. The leadership is thought to comprise twelve individuals who meet secretly in different locations around the world. But it’s also because its activities are kept in check by the Kremlin, while at the same time enabled by the Russian elite, or “kleptocrats”. Similar to the triads in China, Russian gangsters have been embedded in the political establishment ever since Stalin first employed them to rob banks and raise funds for revolution. In the 1990s, the collapse of the Soviet Union and Russia’s subsequent entry to the capitalist free market was a “feeding frenzy” for gangs. Ultimately, they helped shape the new status quo. Nowadays, there’s no clear line between crime and state. The trafficking of drugs and humans is almost seamlessly combined with legitimate business enterprises.

1. Yamaguchi-gumi

For many years, police have sought to destroy the Yamaguchi-gumi yakuza – “one of the most feared crime syndicates in Japan”. From its fortress-like headquarters, it runs the world’s largest and wealthiest gang or, as some would put it, “Japan’s second largest private equity group”. Members are known to gather insider trading information, as well information to blackmail powerful politicians and executives, through a network of hospitality workers. Other activities include drugs trafficking, fraud, theft, and violent crimes.

However, they also run legitimate businesses and humanitarian groups. For a criminal gang, they actually have a very public image in Japan – from office buildings and business cards to fan magazines and “comic books about their exploits”. This is a far cry from its origins as a loose labor union of dock workers in early twentieth century Kobe. This yakuza also bucks many of the usual stereotypes, with younger members tending away from tattoos, chopping off their pinkies, and so on to avoid identification as gang members. Gang warfare involving shootouts has also become much less common. The penalties for firearm possession are just too severe to make sense to the new generation of yakuza.

Nevertheless, Yamaguchi-gumi operations extend throughout Asia and into the United States. Domestically, the gang also plans to expand into Tokyo – historically not their territory. Despite the more punishing laws in Japan and internal splits, it remains dominant both at home and abroad.