Ronald "Trousers" Smith (May 3, 1943 – June 2, 2013) was an American professional football defensive back and return specialist. He played in the National Football League (NFL) for ten season with five teams: the Chicago Bears (1965, 1970–1972), Atlanta Falcons (1966–1967), Los Angeles Rams (1968–1969), San Diego Chargers (1973), and 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. On June 2, 2013, Smith died in Denver, Colorado from lung cancer.