These are all churches that currently hold Orthodox services. If I can't find evidence of a church that holds regular services (house churches count), then the country does not have an Orthodox Church listed. I have included Oriental Orthodox Churches. If you know of a country with an Orthodox Church that I have missed or overlooked, please let me know.
Taiwan
Holy Trinity Orthodox Church, Taipei
Tajikistan
St Nicholai Orthodox Church, Dushanbe
Tanzania
Church of the Twelve Apostles, Bukoba
Thailand
Togo
I cannot find any evidence of an Orthodox Church in Togo.
Please pray for an Orthodox Church here!
Tonga
I cannot find any evidence of an Orthodox Church in Tonga.
Please pray for an Orthodox Church here!
Transnistria
Church of the Nativity, Tiraspol
Trinidad and Tobago
Holy Trinity Parish, Beetham Gardens, Port of Spain
Tunisia
Greek Orthodox Church of St George, Tunis
Turkey
Patriarchal Church of St George, Constantinople/Istanbul
Church of St Nicholas the Wonderworker, Ashgabat
Tuvalu
I cannot find any evidence of an Orthodox Church in Tuvalu.
Please pray for an Orthodox Church here!
Please pray for an Orthodox Church here!