Brian Auger (born 18 July 1939, London, England) is a jazz and rock keyboardist, who has specialised in playing the Hammond organ.

A jazz pianist, bandleader, session musician and Hammond B3 player, Auger has played or toured with artists such as Rod Stewart, Tony Williams, Jimi Hendrix, John McLaughlin, Sonny Boy Williamson, Led Zeppelin, Eric Burdon and others. He has incorporated jazz, early British pop, R&B, soul music and rock, and he has been nominated for a Grammy.