Agios Antonios (Greek: Άγιος Αντώνιος, before 1928: Ζέρβαινη – Zervaini;[2] Bulgarian and Macedonian: Жервени, Zherveni or Žerveni) is a village in Kastoria Regional Unit, Macedonia, Greece.

Zervaini (Zhèrveni) was inhabited by Slavic speaking Muslims and its villagers (called Zherventsi) had converted to Islam in 1800.

[3][4][5] Zervaini villagers spoke the same dialect of the wider Koresta region and only a few men could speak Turkish.

[3][9][4] Muslim Zervaini people in Turkey had difficulties adjusting to their new environment, due to language differences and unfriendly locals.

[4] In early twenty first century Turkey, young people descended from Muslim Zervaini villagers do not speak their Slavic dialect and certain elderly individuals have knowledge of it.