The Pastra (Greek: Πάστρα) is a mountain in West Attica, Greece, near the border with Boeotia.

Places around the Patra mountains are, from the north and clockwise, Dafni, Pyli, Oinoi and Erythres.

The Greek National Road 3 (Eleusis - Thebes) passes west of the mountains.

A number of municipalities and settlements were located around Pastra in antiquity including Oenoe (Οινόη), Eleutherae (Ἐλευθεραί), Erythrae (Ἐρυθραί), and Hysiae (Ὑσιαί).

The ancient boundary between Attica, Megaris and Boeotia lay on the top of the mountain.