Phrixa or Phrixae or Phrixai (Φρίξαι) was a town of Triphylia in ancient Elis, situated upon the left bank of the Alpheius, at the distance of 30 stadia from Olympia. It is one of the six cities founded by the Minyans in the territory of the Paroreatae and Caucones. Its name was derived from Phaestus.