John IV of Vendôme

John IV of Montoire (Jean IV de Vendôme; died 1240) was a French baron who became the first count of Vendôme from the House of Montoire-Vendôme. He inherited Montoire and succeeded as count of Vendôme in 1217, ruling until 1239 or 1240.

The son of Peter II of Montoire and Agnes of Vendôme, John married Eglantine, by whom he had several children, including Peter, who succeeded him as count, and Geoffrey, lord of Lavardin.