Benjamin Constant Martha

Benjamin-Constant Martha, also known under the name Constant Martha, (1820–1895) was a 19th-century French moralist and historian of ancient morality.

A graduate of the École normale supérieure, agrégé de lettres and docteur ès lettres, he was professor of literature at the lycée de Strasbourg, then held the chair of Latin eloquence at the Sorbonne and professor at the Collège de France. He was elected a member of the Académie des sciences morales et politiques in 1872.

He was Jules Martha's father and Paul Girard's stepfather.