• James Wasson (18??-1886) - Wasson was wanted for the 1872 murder of a man named Henry Martin, but eluded capture until 1884. After he killed Almarine Watkins in Oklahoma, he was finally captured. He was hanged at Fort Smith, Arkansas on  April 23, 1886.

• Ellen Watson, a/k/a Cattle Kate - (1861-1889) - An alleged cattle rustler by those involved in the Johnson County War of Wyoming, Watson was actually innocent.

• Henry Watts - An outlaw horse thief, Watts was captured in June, 1881 with Charlie Allison in Albuquerque, New Mexico.

• John Watts - A cattle rustler who was killed by the militia in New Mexico in March, 1883.

• Gilbert Webb - Arrested for complicity in the robbery of an Army paymaster at Fort Thomas, Arizona on May 11, 1889.

• John Joshua (J.J.) Webb (1847-1882) - Both an lawman and an outlaw, Webb served as a Dodge City, Kansas Deputy Marshal before moving on to Las Vegas, New Mexico. There, he served as a "crooked lawman" when the Dodge City Gang was in control.

• Wilfred Webb - Arrested for complicity in the robbery of an Army paymaster at Fort Thomas, Arizona on May 11, 1889.

• George “Red Buck” Weightman (18??-1896) - Thought to have hailed from Texas, Weightman was a noted horse thief and killer before joining the Doolin Gang. He was killed by lawmen near Arapahoe, Oklahoma in 1896.

• Charles Knox Polk Wells (1851-1896)- An admitted outlaw and murderer originally from Missouri, Wells robbed banks and trains and allegedly killed over thirty men including an uncle and a jailer. He was convicted of murder in May, 1882 and received a life sentence. He died in an Iowa prison.

• Henry Wells - Oklahoma outlaw Henry Wells rode with Al Spencer and Jelly Nash.

• Tom Welsh - A New Mexico outlaw Welsh killed Joe Hickson in Good Hope, New Mexico on October 28, 1884.

• Kinch West - Outlaw member of the Tom Story Gang of Oklahoma.

• Richard West, aka: Little Dick (18??-1898) - West was working as a cowboy on the Halsell ranch in Oklahoma when he met Bill Doolin and joined up with the Oklahombres in 1892. He was tracked down on April 8, 1898 by Heck Thomas and Bill Tilghman and was killed in a gunfight.

• “Red River” Tom Whealington - A New Mexico outlaw, Whealington was shot and killed with Dick Rogers while attempting to break a friend out of jail in Springer, New Mexico on March 13, 1885.

• Ben Wheeler - See Ben Robertson

• Grant Wheeler (18??-1895) - A train robber in Arizona, Wheeler was pursued by ex-Tombstone lawman and railroad detective, Billy Breakenridge into Colorado. Surrounded by a posse on April 25, 1895 in Mancos, Colorado and wounded, he committed suicide rather than be taken in.

• Frank Wheeler - A member of Selman's Scouts following the turmoil of the Lincoln County War in New Mexico. He was shot and killed by Sam Perry in Hillsboro, New Mexico Territory on July 16, 1879.

• James Wheeler - New Mexico outlaw Wheeler shot and killed Adolph Davidson in Chance City, New Mexico in April 1886.

• V. S. Whitaker - A member of Selman's Scouts following the turmoil of the Lincoln County War in New Mexico. He was killed by a posse led by Juan Patron near Fort Sumner, New Mexico Territory on October 10, 1878.

• Ham White - A murderer and stage robber on the road between San Antonio and Austin, Texas.

• Henry Clay White (18??-1900?)

• Pete Whitehead - An Oklahoma murderer, Whitehead killed Jack Bullard and a deputy in Roger Mills County, Oklahoma.

• William Henry Whitley, aka: Bill, Will (1864-1888) - The co-leader of the a gang sometimes referred to as the Bill Whitley Gang, and at other times, the Brack Cornett Gang, Whitley was a bank and train robber in Texas during the late 1880's. He was killed by U.S. Deputy Marshals in Floresville, Texas on September 25, 1888.

• William Whittington - Whittington, along with Daniel Evans, killed their traveling companions in Oklahoma for the cash and goods they carried. Both were hanged at Fort Smith, Arkansas on September 3, 1875, the first hanging on new Judge Isaac C. Parker.

• W. Wiggin - An outlaw lynched in San Marcial, New Mexico in September,  1882.

• William Elliot Wiley, alias Colorado Bill (18??-1879) - Elliott killed David J. Brown in Muskogee, Oklahoma in February 1879. Also suspected of murders in four different states, a local newspaper noted that "He will hardly be wanted...after they get through with him here." He was hanged at Fort Smith, Arkansas on August 29, 1879.

• Burt Wilkinson (1862?1881) - A member of the Stockton Gang of robbers in northern New Mexico, Wilkinson shot Silverton, Colorado Marshal Clate Ogsbury on August 24, 1881. When a $2,500 reward was offered for his arrest, gang leader, Ike Stockton, turned him in. In no time, Wilkinson was arrested and lynched on September 4, 1881.

• Ben Williams - A peace officer and attorney who was involved in the El Paso Salt Wars, Williams was involved in a shoot-out in Las Cruces, New Mexico on September 14, 1870. When the smoke cleared, he and his brother-in-law, Joe Morgon were dead.

• Charles Williams - New Mexico outlaw Williams was lynched near Harshaw, New Mexico in November, 1883.

• Doc Williams - Outlaw member of the Christian Gang.

• Ed Williams - See Will Christianson

• Jess Williams - Outlaw member of Black Jack Christian's gang.

• Thomas Willis (18??-1890) - An outlaw operating in Indian Territory, Willis robbed and murdered W.P. Williams with the help of John Billee in the Kiamichi Mountains of Oklahoma. Wanted for robbery and murder, he was captured by U.S. Deputy Marshals, Will Ayers, James Wilkerson, and Perry DuVall and taken to Fort Smith, Arkansas where he was hanged on January 16, 1890.

• Aaron Wilson - (18??-1875) - Black outlaw Aaron Wilson killed James Harris with an axe and then shot and killed Harris' 12 year old son. The motive was theft. He was hanged at Fort Smith, Arkansas on ctober 12, 1875.

• George Wilson, aka: James Casherago (18??-1896) - On May 15, 1895, Wilson killed his traveling companion, Zachariah W. Thatch, with an axe. He was the last man hanged at Fort Smith, Arkansas on July 30, 1896.

• Jim Wilson - A New Mexico outlaw, Wilson shot and killed Dane Williams in Central City, New Mexico on March 20, 1886.

• Sinker Wilson (18??-1876) - Sinker Wilson murdered a sheep drover named Datus Cowan in 1867. He was arrested, convicted and sentenced that year, but escaped jail and remained at large for nine years until captured early in 1876. Has hanged at Fort Smith, Arkansas on September 8, 1876.

• William Wilson - During the Lincoln County War of New Mexico, the Dolan/Murphy faction paid Wilson $500 to kill one of his opponents, one Robert Casey, promising him that the law would look the other way. Lawrence was wrong and Wilson was hanged twice on December 10, 1875.

• William “Billy” Wilson - See David L. Anderson

• Len Woodruff (18??-??)

• Dick Woods - See Richard Barter

• Nick Worthington - A New Mexico and Colorado outlaw, Worthington stole horses and killed several men before he was shot and killed by civilians in Cimarron, New Mexico in June 1878.

• Nelson Ellsworth Wyatt, aka: Zip, Dick Yeager, Wild Charlie (1864?-1895) - An Oklahoma outlaw, Wyatt was a cattle rustler and post office robber, who also killed a deputy sheriff  in Kansas. Pursued by lawmen in Oklahoma, he was wounded at the time of his capture on August 4, 1895. He later died in the Enid, Oklahoma jail on September 7, 1895.

• Wa-Har-Key Son - A Choctaw Indian,  he was wanted for the double murder of Mr. Marriot and his wife. He was arrested by Heck Thomas and sentenced to life in prison.

• Archie Wolfe - An outlaw in the Cherokee Nation of Indian Territory, Wolfe was a friend of ned Christie. He was captured in Chicago, Illinois.

• Jack Womankiller - Outlaw in the Cherokee Nation of Indian Territory, Womankiller was convicted of killing a settler. He was hanged at Fort Smith on July 11, 1884. 

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