Peirae or Peirai (Ancient Greek: Πειραί) was a village of ancient Achaea in the neighbourhood of Olenus, and one of the places to which the inhabitants of Olenus fled upon leaving their city.

 This article incorporates text from a publication now in the public domain: Smith, William, ed. (1854–1857). "Olenus". Dictionary of Greek and Roman Geography. London: John Murray.