Jean III de Sarrebruck-Commercy

Jean III de Sarrebruck-Commercy (died 1384 or 1385) was a son of Jean II and Alix de Joinville and sire of Commercy-Château-Haut. He had first chosen the Church and in 1352 is styled a canon of Toul and Verdun, but inherited Commercy when his brother Simon II died childless in 1355.

In 1358 he married Marie d'Arcelles, lady of Méry-sur-Seine. Their sons were Simon III, sire of Commercy, Jean, a bishop, and Amé I, ancestor of the later Saarbrücken-Commercy line.