Odo or Eudes II of Champlitte (died May 1204 at the Siege of Constantanople) was the first son of Odo I of Champlitte and a grandson of Hugh, Count of Champagne, although Hugh disowned Odo I. Along with his brother, William of Champlitte, Odo was a prominent leader of the fourth crusade. He was injured in the siege of Constantinople and died shortly after in May 1204. He left behind a wife, Emeline of Broyes, who was much younger than he, and a daughter, Oda or Odette or Euda, who married Hugh I of Gand. Emiline was daughter of Elizabeth of Druex and Hugh III of Broyes.[1]