Oea or Oia (Ancient Greek: Ὀία) or Oee or Oie (Οἴη) or Oe (Ὄη or Ὀή) was a deme of ancient Athens.
The location of Oea has been a matter of debate, with some situating it above the Pythium, to the west of Mount Aegaleos, to the north of the pass of Poecilum,[1] and recent work putting the site northeast of Aspropyrgos.[2][3]
In the Boule of 500, Oea held six seats, and the deme seems to have maintained this rough scale into the Roman period.[4]