Orchomenus or Orchomenos or Orkhomenos () may refer to:
Greek mythology Orchomenus (mythology), the name of several distinct figures
Ancient Greek geography
Orchomenus (Arcadia), also called the Arcadian Orchomenus, a city of Arcadia Orchomenus (Boeotia), also called the Minyean Orchomenus, a city of Boeotia Orchomenus (Euboea), a town of ancient Euboea Orchomenus (Thessaly), a town of ancient Thessaly
History Battle of Orchomenus, fought in 85 BCE near the Minyean Orchomenus