Pierre Wissmer (30 October 1915 – 4 November 1992) was a 20th-century French classical composer of Swiss origin.
His first piano concerto was created on the radio by Jacqueline Blancard 10 October 1937 under the direction of Henri Tomasi.
In 1944, he was appointed professor of composition at Conservatoire de Genève and head of the Department of chamber music at Radio Geneva.
In 1948, he married the pianist Laure-Anne Étienne, a student of Marguerite Long at Conservatoire de Paris.
In 1958 he adopted French citizenship and later was appointed director of the École normale de musique of Le Mans (1969–1981).