In Greek mythology, Menoetius referred to several different people.

1. A son of Iapetus and Clymene. Zeus struck him down with a lightning bolt on Mt. Triphyle, or threw him to Tartarus.
2. One of Hades' shepherds on Erythea. He told Geryon when Heracles stole Geryon's herd.
3. Father of Patroclus and son of Actor. (Iliad, XI, 765)