Paul Lemerle (22 April 1903 – 17 July 1989) was a French Byzantinist, born in Paris.
Lemerle taught at the École française d'Athènes (1931–1941), at the Faculté des Lettres of the University of Burgundy at Dijon (1942–1947), at the École Pratique des Hautes Études (1947–1968), at the Sorbonne (1958–1967) and at the Collège de France (1967–1973). He completed his doctoral dissertation in 1945, on the city of Philippi and eastern Macedonia during the Byzantine period.
He was the founding president of the International Association of Byzantine Studies (AIEB).
He died in Paris.