Clément Joseph Marie Raymond Guillon (April 27, 1932 – July 9, 2010) was the Roman Catholic bishop of the Roman Catholic Diocese of Quimper, France.
Ordained to the priesthood on May 5, 1957, Guillon was made coadjutor bishop of the Quimer Diocese on March 17, 1988 and was ordained bishop on April 10, 1988. He became the diocesan bishop on May 3, 1989 retiring on December 7, 2007.[1]