Oreini () (Bulgarian: Горно Фръщани, Gorno Frashtani) is a village and a former community in the Serres regional unit, Greece. Since the 2011 local government reform it is part of the municipality Serres, of which it is a municipal unit. The municipal unit has an area of 54.309 km2. Population is 575 inhabitants (2021).
Northeast of the modern village (approximately 2 km), on the hill of "Prophet Helias", the site of a Roman settlement has been identified.Dimitrios C. Samsaris, Historical Geography of Eastern Macedonia during the Antiquity (in Greek), Thessaloniki 1976 (Society for Macedonian Studies), p. 174. . Dimitrios C. Samsaris, A History of Serres (in the Ancient and Roman times) (in Greek), Thessaloniki 1999, p. 167 (Website of Municipality of Serres) His foundation, dating back to early antiquity, is associated with the rich iron mines of mountain Vrontous, as is evidenced by the discovery of an iron smelter side the ruins of a Roman castle, located 3–4 km east of the hill of "Prophet Helias".Dimitrios C. Samsaris, Ancient castle and iron smelter near the modern village Oreini of Serres (in Greek), Makedonika 19 (1979), p. 240-251
The ruins of Banitsa, a formerly Bulgarian inhabited village abandoned in 1913, are also nearby.
See also List of settlements in the Serres regional unit
References