Peisistratus or Pisistratus (; Peisistratos), was a figure in Greek mythology, the youngest son of Nestor. He became an intimate friend of Telemachus, son of Odysseus, and travelled with him on his unsuccessful search for his father (Odyssey III, 36, 400). Like Telemachus, Peisistratus was only a small boy when his father (and brothers Antilochus and Thrasymedes) left to fight in the Trojan War.