Pefnos or Pephnos or Pephnus (Ancient Greek: Πέφνος), or Pephnum or Pephnon (Πεφνόν), was a town of ancient Laconia, on the eastern coast of the Messenian Gulf, distant 20 stadia from Thalamae. Nowadays, the village Agios Dimitrios of the municipality of West Mani is near or on the spot that ancient Pefnos existed. In front of it, there is a small island of the same name (Pefnos island), which Pausanias describes as not larger than a great rock, in which stood, in the open air, brazen statues of the Dioscuri, a foot high. There was a tradition, that the Dioscuri were born in this island. The island is at the mouth of the river Miléa, which is the minor of Strabo. The Messenians said that their territories originally extended as far as Pefnos.