Harvey Alexander Logan, also known as Kid Curry, was an American outlaw and gunman who rode with Butch Cassidy and the Sundance Kid's infamous Wild Bunch gang during the late 19th and early 20th centuries. Despite being less well-known than his fellow gang members, he has since been referred to as "the wildest of the Wild Bunch", having reputedly killed at least nine law enforcement officers in five shootings and another two men in other instances. He was involved in numerous shootouts with police and civilians and participated in several bank and train robberies with various gangs during his outlaw days.

Gunfighters, also called gunslingers, or in the late 19th and early 20th century, gunmen were individuals in the American Old West who gained a reputation of being dangerous with a gun and participated in shootouts. Today, the term "gunslinger" is more or less used to denote someone who is quick on the draw with a handgun, but this can also refer to those armed with rifles and shotguns. The gunfighter is also one of the most popular characters in the Western genre and has appeared in associated films, television shows, video games, and literature.