Plotheia (Ancient Greek: ?) was a deme of ancient Attica and appears to have belonged to the district of Epacria, and to have been not far from Halae Araphenides. It was noted for its festival celebrating the hero Pandion.
Its site is located south of modern Stamata.
This article incorporates text from a publication now in the public domain: Smith, William, ed. (1854-1857). "Attica". Dictionary of Greek and Roman Geography. London: John Murray.
Coordinates: 38°07?35?N 23°52?36?E / 38.1264245°N 23.876728°E / 38.1264245; 23.876728