Phil Lyne (born January 18, 1947) is an American former professional rodeo cowboy who competed in the Rodeo Cowboys Association (RCA)/Professional Rodeo Cowboys Association (PRCA). Lyne was the RCA Rookie of the Year in 1969. Two seasons later at the National Finals Rodeo (NFR), in 1971, he won the World All-Around Cowboy Championship and the World Tie-down Roping Championship. At the NFR in 1972, he repeated as the World All-Around Cowboy champion and added a second World Tie-down Roping Championship. Lyne won his first and only World Steer Roping Championship at the NFR in 1990. He was inducted into the ProRodeo Hall of Fame in 1979.