This is a list of known lawmen and other law enforment officials of the American frontier popularly known as the "Wild West".

See also sheriff, marshal, Texas Rangers, wild west

Lawmen

• Ira Aten (18??-18??), Castro County Sheriff and Texas Ranger
• Elfigo Baca (18??-18??), New Mexico lawman
• P.C. Baird (18??-1928), Mason County Sheriff and Texas Ranger
• Mariano Barela (18??-18??), New Mexico (Mesilla) Sheriff and U.S. Marshal
• Wyatt Earp (1848-1929)
• Pat Garrett (1850-1908)
• "Wild Bill" James Butler Hickok (1837-1876)
• Doc Holliday [John Henry Holliday] (1852-1887)
• John M. Larn (18??-1877)
• Steve Long (18??-1868)
• Bat Masterson [William Bartholomew Masterson] (1853/1856-1921)
• "Mysterous" Dave Mather (1845-1915?)
• Henry Plummer (1837-1864)
• John Selman (1839-1896)