Geoffrey Keezer (born November 20, 1970) is an American jazz pianist. He is a two-time Grammy nominee.
A native of Eau Claire, Wisconsin, Keezer was playing in jazz clubs as a teenager, holding down the piano chair for Art Blakey at age 18, and touring in the company of Joshua Redman, Benny Golson and Ray Brown in his 20s. More recently he has toured with David Sanborn, Chris Botti, Joe Locke and Christian McBride; worked with vocalist Denise Donatelli on projects garnering three Grammy Award nominations, and released a series of albums drawing influences from Hawaiian, Okinawan and Afro-Peruvian folk traditions.
His 2009 CD, Áurea, was nominated for Best Latin Jazz Album; in 2010 he was nominated for Best Instrumental Arrangement Accompanying Vocalist(s) for the track "Don't Explain" on Denise Donatelli's When Lights Are Low. In 2013 Keezer released his first solo piano album in 13 years, Heart of the Piano (Motéma Music).
In 1989, at age 18, Keezer joined Art Blakey and the Jazz Messengers, becoming the last pianist to join the band. He composed and arranged original music for the group, with which he remained until Blakey's death in 1990. Keezer's debut album as a leader, Waiting in the Wings (Sunnyside) came out in 1989.
Keezer joined the Art Farmer Quartet in 1990. The band performed at major North American jazz festivals and jazz clubs. Keezer served as musical director and arranger from 1994 to 1995. In 1997, Keezer became a member of bassist Ray Brown's trio He toured the world with Brown, performing at clubs and major festivals in North America, Japan, Europe and the Middle East. The Ray Brown Trio played concerts with the Israel Philharmonic; the Radio Orchestra of Munich at the Weiner Konzerthaus and Conservatory in Vienna, Austria; and at Lincoln Center in New York City.