In Greek mythology, Aristodemus (Ancient Greek: Ἀριστόδημος) was a Heracleidae, son of Aristomachus and brother of Cresphontes and Temenus. He was a great-great-grandson of Heracles and helped lead the fifth and final attack on Mycenae in the Peloponnesus.

In Greek mythology, Aristodemus (Ancient Greek: Ἀριστόδημος) was a Heracleidae, son of Aristomachus and brother of Cresphontes and Temenus. He was a great-great-grandson of Heracles and helped lead the fifth and final attack on Mycenae in the Peloponnesus.