- Türkiye (Turkey)
- Cyprus (predominantly in the northern part)
- Bulgaria (by the Turkish minority)
- Greece (by the Muslim minority in Western Thrace)
- North Macedonia (by the Turkish minority)
- Kosovo (by the Turkish minority)
- Albania (by the Turkish minority)
- Montenegro (by the Turkish minority)
- Bosnia and Herzegovina (by the Turkish minority)
- Serbia (by the Turkish minority)
- Romania (by the Turkish minority)
- Georgia (by the Turkish minority in Adjara)
- Iraq (by the Turkmen minority)
- Syria (by the Turkmen minority)
Greek:
- Greece
- Cyprus (predominantly in the southern part)
- Albania (by the Greek minority)
- Italy (by the Griko minority)
- Turkey (by the Greek minority in Istanbul and Imbros)
- Egypt (by the Greek minority)
- United States (by the Greek-American community)
- Canada (by the Greek-Canadian community)
- Australia (by the Greek-Australian community)
- Germany (by the Greek minority)
- United Kingdom (by the Greek minority)