Jean I de Montfort (?-1249, Cyprus), Comte de Montfort from 1241 to 1249, son of Amaury VI, comte de Montfort, and of Béatrice de Bourgogne.
In March 1248 he married Jeanne de Châteaudun, dame de Château-du-Loir, daughter of Geoffroy VI, vicomte de Châteaudun, and of Clémence des Roches. Their children were: