Philip IV may refer to:

Philip IV of Macedon (died 297 BC) Philip IV of France (1268–1314), Avignon Papacy Philip IV of Burgundy or Philip I of Castile (1478–1506) Philip IV, Count of Nassau-Weilburg (1542–1602) Philip IV of Spain (1605–1665)

See also Walls of Philip IV, a City Walls built by Philip IV of Spain in Madrid