In Greek mythology, Peisistratus (Ancient Greek: Πεισίστρατος, romanized: Peisistratos) was a prince of Pylos in Messenia.

Peisistratus was the youngest son of King Nestor^[1][2] either by Eurydice^[3] or Anaxibia.^[4] He was the brother to Thrasymedes, Pisidice, Polycaste, Perseus, Stratichus, Aretus, Echephron, and Antilochus.

Peisistratus became an intimate friend of Telemachus, son of Odysseus, and travelled with him on his unsuccessful search for his father.^[5] Like Telemachus, Peisistratus was only a small boy when his father (and brothers Antilochus and Thrasymedes) left to fight in the Trojan War.

• Herodotus, The Histories with an English translation by A. D. Godley. Cambridge. Harvard University Press. 1920. Online version at the Topos Text Project. Greek text available at Perseus Digital Library.
• Homer, The Odyssey with an English Translation by A.T. Murray, PH.D. in two volumes. Cambridge, MA., Harvard University Press; London, William Heinemann, Ltd. 1919. Online version at the Perseus Digital Library. Greek text available from the same website.
• Pausanias, Description of Greece with an English Translation by W.H.S. Jones, Litt.D., and H.A. Ormerod, M.A., in 4 Volumes. Cambridge, MA, Harvard University Press; London, William Heinemann Ltd. 1918. Online version at the Perseus Digital Library
• Pausanias, Graeciae Descriptio. 3 vols. Leipzig, Teubner. 1903. Greek text available at the Perseus Digital Library.
• Pseudo-Apollodorus, The Library with an English Translation by Sir James George Frazer, F.B.A., F.R.S. in 2 Volumes, Cambridge, MA, Harvard University Press; London, William Heinemann Ltd. 1921. Online version at the Perseus Digital Library. Greek text available from the same website.