Thespiae (thĕs`pē-ē'), ancient city of Greece, in S Boeotia, near Mt. Helicon (now Elikón) and SW of Thebes. The Thespians fought (479 B.C.) against the Persians at Thermopylae and Plataea. They joined (after 382 B.C.) the Spartans against their rivals, the Thebans. The famous statue of Eros by Praxiteles was a showpiece of Thespiae.