William Joseph Susman (born August 29, 1960) is an American composer of concert and film music and a pianist.

[2] In addition to performances of his music in the U.S. and Europe, his compositions have been broadcast, for example his piano concerto on WQXR,[3] in New Sounds on WNYC,[4] Echoes[5] on NPR and Concertzender.

[7] Susman's earliest orchestral works were influenced by Iannis Xenakis and György Ligeti.

[8] He is interested in algorithmic composition, following his composition teacher Herbert Brun at the University of Illinois and John Chowning at The Center For Computer Research in Music and Acoustics at Stanford University.

He also studied piano with Pauline Lindsey (a student of Artur Schnabel), Steve Behr (pianist with Louis Armstrong) and Alan Swain.