The Cochise County Cowboys is the modern name for a loosely associated group of outlaws living in Pima and Cochise County, Arizona in the late 19th century. The term "cowboy", as opposed to "cowhand," had only begun to come into wider usage during the 1870s. In that place and time, "cowboy" was synonymous with "cattle rustler". Such thieves frequently rode across the border into Mexico and stole cattle from Mexican ranches that they then drove back across the border to sell in the United States. Some modern writers consider them to be an early form of organized crime in America.

A cowboy is an animal herder who tends cattle on ranches in North America, traditionally on horseback, and often performs a multitude of other ranch-related tasks. Cattle drives ensure the herds health in finding pasture and bring them to market. The historic American cowboy of the late 19th century arose from the vaquero traditions of northern Mexico and became a figure of special significance and legend. A subtype, called a wrangler, specifically tends the horses used to work cattle. In addition to ranch work, some cowboys work for or participate in rodeos. Cowgirls, first defined as such in the late 19th century, had a less-well documented historical role, but in the modern world work at identical tasks and have obtained considerable respect for their achievements. Cattle handlers in many other parts of the world, particularly South America and stockmen and jackaroos in Australia, perform work similar to the cowboy.