In Greek Mythology Thersander is
- one of the Epigonoi, a son of Polynices. He intended on fighting for the Greeks during the Trojan War but he was killed by Telephus before the war began, while the Greeks had mistakenly stopped in Mysia.
He was a king of Thebes. He is the father of Tisamenus
- a son of Agamedidas, king of Cleestonaeans , Paus. 3.16.6