Philip Wilby (born Pontefract, 1949) is a British composer.

Educated at Leeds Grammar School and Keble College, Oxford, he joined the staff at the University of Leeds as a Lecturer in the Department of Music in 1972. There he taught various composition, liturgy, directing, and score reading classes as well as co-founding the Leeds University Liturgical Choir.

For the viola player, please use Philip Wilby (2).