Paul-Gilbert Langevin (Boulogne-Billancourt, 5 July 1933 – Paris, 4 July 1986) was a French musicologist, who wrote books on Anton Bruckner, Franz Schubert and 19th-century classical music.
Paul-Gilbert Langevin was the son of French physicist Paul Langevin (1872–1946) and Eliane Montel (1898–1992), a private teacher at the Sorbonne science department.
During this time, he met musicologists Harry Halbreich, Gustave Kars, Jacques Feschotte, Pierre Vidal, Marc Vignal and Jean-Luc Caron.
Langevin went on to create the Anton Bruckner French society, wrote books on 19th-century symphonic music, edited in La Revue Musicale and L'Age d'Homme, and became a music critic in Le Monde de la musique, edited by Anne Rey.
From the 1950s, Langevin focused on classical music, symphonic music, and writing.
He was also interested in works by Hugo Wolf, Gustav Mahler, Arnold Schoenberg, Franz Schmidt, Ferruccio Busoni, Leoš Janácek and Carl Nielsen.
He died on 4 July 1986.