Mossyna () or Mosyna (ÃÂÿÃÂÃÂýñ) 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 (ÃÂÿÃÂÃÂÃÂý).
Mossyna became a Byzantine bishopric, located between Dionysopolis and Laodikeia, and is included in the Catholic Church's list of titular sees.
Its site is northeast of ÃÂal, in Denizli Province, Turkey.