Hieronymus of Cardia (Greek: Ἱερώνυμος ὁ Καρδιανός, c. 354 – c. 250 BC) was a Greek general and historian from Cardia in Thrace, and a contemporary of Alexander the Great (356–323 BC).
After the death of Alexander III, he followed the fortunes of his friend and fellow-countryman Eumenes. He was wounded and taken prisoner by Antigonus, who pardoned him and appointed him superintendent of the asphalt beds in the Dead Sea. He was treated with equal friendliness by Antigonus's son Demetrius, who made him polemarch of Thespiae, and by Antigonus Gonatas, at whose court he died at the purported age of 104.