Philip IV was briefly king of the ancient Greek kingdom of Macedonia in 297 BC. He belonged to the Antipatrid dynasty and was the son of Thessalonike, daughter of Philip II, and Cassander, king of Macedonia. Philip succeeded his father unopposed after Cassander succumbed to tuberculosis in 297 at Pella. However, Philip died four months later in Elateia of the same disease, leaving the throne to his two younger brothers, Antipater and Alexander.