Didymateiche (Ancient Greek: Δίδυμα τείχη), or Didymon Teichos (Ancient Greek: Δίδυμον Τεῖχος, 'twin walled'), was a town of ancient Mysia. It belonged to the Delian League since it appears in tribute records of Athens between the years 454/3 and 418/7 BCE. Polybius writes that it was among the places that were conquered by Attalus I, after the city of Carseae.
- Polybius. The Histories. Vol. 5.77.8.
- Richard Talbert, ed. (2000). Barrington Atlas of the Greek and Roman World. Princeton University Press. p. 52, and directory notes accompanying.
- Mogens Herman Hansen & Thomas Heine Nielsen (2004). "Troad". An inventory of archaic and classical poleis. New York: Oxford University Press. p. 979. ISBN 0-19-814099-1.
- Lund University. Digital Atlas of the Roman Empire.