Odet de Coligny (10 July 1517 – 21 March 1571) was a French aristocrat, cardinal, Bishop-elect of Beauvais, Peer of France, and member of the French Royal Council.
From 1534 he was usually referred to as the Cardinal of Châtillon.
He was son of Gaspard I de Coligny and Louise de Montmorency, and brother of Pierre (1515-1534), Gaspard (1519-1572), and François, Seigneur d'Andelot (1521-1569).