Marius Jean Antonin Mercié (October 30, 1845 – December 13, 1916, Paris), was a French sculptor and painter.

Mercié was born in Toulouse. He entered the École des Beaux Arts, Paris, and studied under Alexandre Falguière and François Jouffroy, and in 1868 gained the Grand Prix de Rome at the age of 23. His first great popular successes were the David and Gloria Victis, which was shown and received the Medal of Honour of the Paris Salon. The bronze was subsequently placed in the Square Montholon.

The bronze David was one of his most popular works. The Biblical hero is depicted naked with the head of Goliath at his feet like Donatello's David, but with a turbanned head and sheathing his long sword. Numerous reproductions exist, most of which incorporate a loincloth that covers David's genitalia but not his buttocks. The lifesize original is now^[update] in the Musée d'Orsay.

Mercié was appointed Professor of Drawing and Sculpture at the École des Beaux Arts, and was elected a member of the Académie française in 1891, after being awarded the biennial prize of the Institute of 800 in 1887. He was subsequently elected to grand officier of the Légion d'Honneur, and in 1913 became the president of the Société des artistes français.