Mastaura (Lycia)

Mastaura (Ancient Greek: Μάσταυρα) was a town in ancient Lycia.

It may have been located at present-day Dereağzı, some 25 km northwest of Myra, which is therefore not to be confused with Dereağzı, Nazilli or Dereağzı, İncirliova.

Dereağzı had a large domed church made of brick, which may have been the cathedral of Mastaura.