John of Châtillon or Jean de Châtillon may refer to:
John of the Grating (died 1163), also called John of Châtillon, bishop of Aleth John I, Count of Blois (died 1280), of the House of Blois-Châtillon John of Châtillon (theologian) (died 1298) John, Count of Saint-Pol (died 1344), of the House of Châtillon , Grand Master of France John II, Count of Blois (died 1381), of the House of Blois-Châtillon (died 1398), knight, ancestor of Queen Jeanne de Laval John I, Count of Penthièvre (died 1404), of the House of Blois-Châtillon John II, Count of Penthièvre (died 1454), of the House of Blois-Châtillon