Artabazus (in Greek Αρτάβαζος) (fl. 389 BC – 328 BC) was a Persian general and satrap. He was the son of the Persian satrap of Phrygia, Pharnabazus, and younger kinsman (brother or rather nephew) of Ariobarzanes of Phrygia who revolted against Artaxerxes II around 356 BC.
In 362 BC, Artabazus was sent by Artaxerxes II to capture Datames, the satrap of Cappadocia, who had joined in the Satraps' revolt by Artabazus' brother, Ariobarzanes. However, Artabazus was defeated by the bravery and resolution of Datames.
Following the capture and death of his brother, Artabazus was made satrap of Hellespontine Phrygia, but in 356 BC he refused obedience to the Persian king, Artaxerxes III. Artabazus then became involved in a revolt against the king and against other satraps who acknowledged the authority of Artaxerxes III.
However, Artabazus was at first supported by Chares, the Athenian, and his mercenaries, whom he rewarded very generously. Afterwards Artabazus was also supported by the Thebans, who sent him 5,000 men under Pammenes. With the assistance of these and other allies, Artabazus defeated his enemies in two great battles.
However, Artaxerxes III was later able to deprive Artabazus of his Athenian and Boeotian allies, whereupon Artabazus was defeated by the king's general, Autophradates, and was taken prisoner. Mentor and Memnon, two brothers-in-law of Artabazus, who had supported him, still continued the revolt, as they were aided by the Athenian Charidemus. Together they were able to free Artabazus.