Joseph P. Fitzmartin (born in Philadelphia, 1943) is an American composer and arranger. He is one of the founders and the Music Director of the Keystone State Boychoir as well as Choral Director at the William Penn Charter School in Philadelphia.^[1]

His Concert Mass for symphony orchestra and choir, had its world premiere at Carnegie Hall and has since been performed at the Sydney Opera House, in Berlin, and in Russia by the Novgorod Symphony. Following an international composition competition, he was awarded a grant from the Basel Boys Choir of Switzerland to compose a major work for an international celebration of youth choirs. The work featured the German text of the poet Hanns Dieter Hüsch and continues to be performed throughout that country.^[1]

• Keystone State Boychoir Archived July 27, 2011, at the Wayback Machine, original at Joseph Fitzmartin, Music Director