Arestor (, gen.: Ἀρέστορος), son of Phorbas or Iasus, is a character from Greek mythology. In some accounts, he is the father of Argus Panoptes, who is therefore called Arestorides. According to Pausanias, Arestor was the husband of Mycene, the daughter of Inachus, from whom the city of Mycenae derived its name.

Arestor (, gen.: Ἀρέστορος), son of Phorbas or Iasus, is a character from Greek mythology. In some accounts, he is the father of Argus Panoptes, who is therefore called Arestorides. According to Pausanias, Arestor was the husband of Mycene, the daughter of Inachus, from whom the city of Mycenae derived its name.