Alagonia (Ancient Greek: Ἀλαγονία) was a town of Laconia, ancient Greece, near the Messenian frontier, belonging to the Eleuthero-Lacones, containing temples of the Greek gods Dionysus and Artemis. This town was 30 stadia distant from Gerenia, but its site is unknown, although it may be synonymous with the modern district within Kalamata, in the prefecture of Messenia.
- Pausanias, Description of Greece iii. 21. § 6-7, iii. 26. § 8-11
- Smith, William (1857), "Alagonia", in Smith, William, Dictionary of Greek and Roman Geography, 1, London: Walton & Maberly, pp. 82–83
- Nat. Com. viii. 23
- Schmitz, Leonhard (1867), "Alagonia", in Smith, William, Dictionary of Greek and Roman Biography and Mythology, 1, Boston: Little, Brown and Company, p. 88