Anaxidamus (Ancient Greek: Ἀναξίδαμος) was a king of Sparta, 11th of the Eurypontids.
Anaxidamus was the son of Zeuxidamus and contemporary with Anaxander, and lived to the conclusion of the Messenian Wars, 668 BC (Paus. iii. 7. § 5.) He was succeeded by his son Archidamus I.
Archidamus I, also spelled Archidamos I (Ancient Greek: Ἀρχίδαμος Α΄), was a king of Sparta, 12th of the Eurypontids. He reigned from c. 660 to c. 645.
His relationship to other Spartan kings is unclear. According to Herodotus, Archidamus was the son of Anaxandridas I and fathered Anaxilas. According to Pausanias, Archidamus was the son of Anaxidamus and fathered Agasicles.
Zeuxidamus (Ancient Greek: Ζευξίδαμος) can refer to two ancient Spartans.