Bennion is a surname. Notable people with the surname include:
Chris Bennion (born 1980), Scottish-born footballer, who has mainly played for clubs in Ireland
Fred Bennion (1884–1960), American college sports coach
Lowell L. Bennion (1907–1996), American educator
Mervyn S. Bennion (1887–1941), American naval officer who died at Pearl Harbour
Milton Bennion, (1870–1953), American educator
Phil Bennion, (born 1954), British politician
Ray Bennion (1898–1968), Welsh international footballer
Sam Bennion (1871–1941), footballer who played for Burslem Port Vale in the 1890s
Stan Bennion (born 1938), footballer who played for Wrexham and Chester