Louis Thiry (born 1935 in Fléville-devant-Nancy), is a French organist, composer and pedagogue. Thiry studied at the Nancy Conservatoire, where he received a first prize in organ at the Nancy Conservatory (organ class of Jeanne Demessieux) in 1952, followed by studies with André Marchal at Institut National des Jeunes Aveugles in Paris. In 1958, Thiry graduated with a first prize in organ performance at the Paris Conservatoire (organ class of Rolande Falcinelli).