Steer is a surname. Notable people with the surname include:
Bartholomew Steer (bap. 1568–1597), English rebelBill Steer (born 1969), British guitaristDugald Steer (born 1965), English writerFrank Steer (1901–2006), American First World War veteranGary Steer (born 1970), English cricketerGeorge Steer (1909–1944), British journalist and soldierJed Steer (born 1992), English footballerJohn Steer (1824–1918), English merchantIrene Steer (1889–1947), Welsh swimmerMichael Steer (born 1956), Australian academicMichael Maxwell Steer, composerOscar Steer (born 2002), English actorPhilip Wilson Steer (1860–1942), British painterRene Steer (born 1990), English footballerRicardo Steer (born 1982), Colombian footballerSerafina Steer (born 1982), English musicianStanley Steer (1900–1997), Anglican bishopTeri Steer (born 1975), American shot putterTrevor Steer (born 1938), Australian rules footballerVincent Steer, typographerWilliam Steer (1988–1969), English footballer