Raoul IV or Ralph IV may refer to:
(11th century), viscount of Maine Ralph IV of Valois (died 1074), count of Valois, Vexin and Amiens Raoul IV de Conches (died 1126), lord of Conches-en-Ouche of the House of Tosny Raoul IV de Crépy (died 1152), count of Vermandois (1743–1833), mayor of Andelys and president of the Conseil général de l'Eure
See also Ralph I (disambiguation) Raoul II (disambiguation) Raoul III (disambiguation)