Wim Mertens (b. Neerpelt, Belgium, May 14, 1953) is a Belgian composer, countertenor vocalist, pianist, guitarist, and musicologist. Mertens studied social and political science at the University of Leuven (graduating in 1975) and musicology at Ghent University; he also studied music theory and piano at the Royal Conservatories of Ghent and Brussels. In 1978, he became a producer at the then BRT (Belgian Radio and Television). For Radio 2 (Radio Brabant) he produced concerts by Philip Glass