Alain Crepin (born 28 February 1954) is a Belgian saxophonist, composer, music educator and conductor.

He began his studies for saxophone, cello and piano at the Music Academy of Dinant.

He studied at the Royal Conservatory of Brussels, and studied under François Daneels, Roland Cardon, Yvon Ducène and Jacques Leduc From 1975 to 1981 he was solo saxophonist in Musik Corps of the Gendarmerie and from 1981 to 1983 he also worked as a saxophonist in the Large Band of the Belgian Guides in Brussels.

In 1985 he became music director of the Band of the Belgian Air Force.

He was also professor of saxophone at the University of Gap, France and in Alicante, Spain.