Paul Hanmer (born 1961, Cape Town) is a South African composer, pianist and one of its foremost jazz musicians. In 1970, Hanmer began classical piano and theory lessons. He enrolled at the University of Cape Town but stayed for a short period then left to work with guitarist Paul Petersen.
In 1987 Hanmer moved to Johannesburg, where he formed Unofficial Language with drummer Ian Herman and bassist Pete Sklair. The group has released two albums, Moves Moves and Primal Steps.
Since 2003 Hanmer has also been composing works for classical performers: UnTsiki and Ntwazana (2003) for The Bow Project, a string quartet for the Sontonga Quartet, a wind quintet for the Mozart anniversary in 2006, a clarinet quintet for Robert Pickup, a suite of duets for double bass and cello for Leon Bosch, a piece for two tubas and drumkit for Anne Jelle Visser of the Zurich Opera, and two duets for violin and harp.