Orchomenus or Orchomenos (Greek: Ὀρχομενός) was an ancient city of Arcadia, Greece, called by Thucydides (v. 61) the Arcadian Orchomenus (Ὀρχομενός ὁ Ἀρκαδικός), to distinguish it from the Boeotian town. Orchomenos was a prehistoric settlement and became one of the powerful cities in West Arcadia along with Tegea and Mantineia. The heyday of the city was between 7th–6th century BC and it became a rich city which minted its own currency. Its ruins are near the modern village of Orchomenos (before 1963: Καλπάκι, Kalpaki).