He was nominated for a 2004 Laurence Olivier Theatre Award for Best New
Musical of the 2003 season for "Ragtime", performed at the Piccadilly Theatre.
Won Broadway's 1998 Tony Award as Best Original Score, his music with
collaborator Lynn Ahrens' lyrics, for "Ragtime. He was also nominated in
1991 for Best Score (Musical), again his music and Ahrens' lyrics, for
"Once on This Island."
Frank Galati and his musical, "Loving Repeating: A Musical of Gertrude
Stein", at the About Face Theatre and Museum of Contemporary Art in Chicago, Illinois, was awarded the 2006 Joseph Jefferson Award for New Work in Musical.
Stephen Flaherty and Lynn Ahrens' musical, "One on This Island", at the
Porchlight Music Theatre in Chicago, Illinois, was nominated for a 2009 Joseph Jefferson Award for Best Production of a Musical (Midsize).