Maenalus could refer to:
Maenalus (town), a town of ancient Arcadia Maenalus (mythology), an Arcadian prince, son of Lycaon (king of Arcadia) Mainalo, also known as Maenalus, a mountain in Arcadia Mons Maenalus, a historical constellation named after the mountain 109 Virginis, a star named Maenalus after the constellation