John II of Châtillon (d. 1381, Valenciennes), second son of Louis I of Châtillon and Jeanne of Avesnes, was count of Blois and lord of Avesnes 1372–1381. In February 1372, he married Marguerite of Guelders (d. 1384), the daughter and heir of Reinoud III, Duke of Guelders, and became Lord of Schoonhoven and Gouda. He spent most of his career trying to seize Guelders from her cousin William I, Duke of Guelders.
| Preceded by Louis III |
Count of Blois 1372–1381 |
Succeeded by Guy II |
