Ronald "Trousers" Smith (May 3, 1943 – June 2, 2013) was an American football defensive back and return specialist. He played professionally in the National Football League (NFL) for ten season with five teams: the Chicago Bears (1965, 1970–1972), the Atlanta Falcons (1966–1967), the Los Angeles Rams (1968–1969), the San Diego Chargers (1973), and the Oakland Raiders (1974). He was traded along with Jim Seymour from the Rams to the Bears for Dick Evey on September 1, 1970. He went to the Pro Bowl after the 1972 season as a kick returner.