Otto, Count of Cleves

Otto (c. 1278–1310) was Count of Cleves from 1305, when he succeeded his father Dietrich VII, until his early death at Horstmar five years later. As eldest son of Dietrich's first marriage, he faced claims from his stepmother Margareta von Neu-Kyburg and her sons.

His first wife Adelheid von der Mark died childless about 1301; in 1308 he married Mechtild von Virneburg. Their daughter Irmgard later married Adolf II of the Marck. Otto was succeeded by his half-brother Dietrich VIII.