Larry Mahan (b. November 21, 1943 in Salem, Oregon) is an American former rodeo champion. He is of Irish descent.
Mahan broke into professional rodeo at the age of 14. He won the title of World All-Around Rodeo Champion for five consecutive years from 1966 to 1970, and a sixth time in 1973. His 1973 comeback and competition with Phil Lyne was the subject of the documentary The Great American Cowboy, which won the 1973 Academy Award for Documentary Feature.
His consecutive all-around record was not surpassed until 1994 by Ty Murray, and his six total all-around victory was not surpassed until 1998, also by Murray. Mahan was also the World Bull Riding Champion in 1965 and 1967.
1966 - Inducted into the National Cowboy and Western Heritage Museum's Rodeo Hall of Fame.
1979 - Inducted into the Pro Rodeo Hall of Fame
1985 - Inducted into the Oregon Sports Hall of Fame in 1985.
2007 - Inducted into The Texas Cowboy Hall of Fame.
2010 - Recipient of the PRCA Legend of ProRodeo.