Michael John Lewis (born 11 January 1939 in Aberystwyth) is a Welsh-born composer of film, theatre, television, and choral music.
His first major work was Please, Sir, a stage musical that attracted the attention of English writer/director Brian Forbes and actor Richard Attenborough.
1973 saw Lewis' Broadway musical debut with Cyrano starring Christopher Plummer, who won a Tony Award for his stellar performance.
Lewis's first US TV score, Rose and the Jackel, starring Christopher Reeve, won him a Cable ACE Award nomination.
Following the death of his daughter Susannah in 1994, Lewis moved away from film scores to concentrate on writing and adapting the music, sacred and secular, of his native Wales.