Mossyna (Ancient Greek: Μοσσύνα) or Mosyna (Μοσύνα) was a city of the middle Maeander valley in the late Roman province Phrygia Pacatiana II. It is mentioned as a bishopric by Hierocles and other ecclesiastical writers. It may have been named for the classical Mossynoeci, or for the Greek word for a wooden tower (Μοσσύν).
- Hierocles. Synecdemus. p. 665.
- Notitiae Episcopatuum
- William Mitchell Ramsay (1883). "The Cities and Bishoprics of Phrygia". The Journal of Hellenic Studies. London: Macmillan & Co. 4: 377–379. Retrieved June 20, 2019.
- Annuario Pontificio 2013. Libreria Editrice Vaticana. 2013. p. 934. ISBN 978-88-209-9070-1.
- "Mossyna: a Pleiades place resource". Retrieved May 3, 2021.