Lawman is an American Western television series originally telecast on ABC from 1958 to 1962, starring John Russell as Marshal Dan Troop and Peter Brown as Deputy Marshal Johnny McKay. The series was set in Laramie, Wyoming, during 1879 and the 1880s. Warner Bros. already had several Western series on the air at the time.

Pierre Lynn de Lappe, also known as Peter Brown, was an American actor. He portrayed Deputy Johnny McKay opposite John Russell as Marshal Dan Troop in the 1958 to 1962 ABC-Warner Brothers western television series Lawman and Texas Ranger Chad Cooper on NBC's Laredo from 1965 to 1967.