Michel Portal (born 25 November 1935 in Bayonne, France) is a French composer, saxophonist, and clarinetist.

Portal studied clarinet at the Conservatoire de Paris. He also studied conducting with Pierre Dervaux.

During August 1969, Portal played on several of the recordings in Stockhausen's cycle of intuitive works, Aus den sieben Tagen.

Portal might be noted most for film music and has won the César Award for Best Music Written for a Film three times. His first win was for the music to The Return of Martin Guerre.