Tisamenus, in Greek mythology, was a son of Orestes and Hermione, daughter of Menelaus, or Erigone, daughter of Aegisthus who were first cousins twice over, so Tisamenus had only five great-grandparents, instead of the usual eight. Tisamenus succeeded his father to the thrones of Argos, Mycenae and Sparta.
- Position held
- mythological king of Sparta, king of Mycenae, king of Argos, king of Achaea
