Ian McLagan (born Ian Patrick McLagan, and known as 'Mac', on 12 May 1945 in Hounslow, Middlesex, England; died in Austin, Texas, on 3 December 2014) was an English keyboard instrumentalist, best known as a member of the English rock bands Small Faces and Faces. He also collaborated with The Rolling Stones, released two albums under his own name, and led his own band, Ian McLagan & The Bump Band, from the late 1970s.