Thailand
Thai, English (secondary language of the elite), ethnic and
regional dialects

Timor-Leste
Tetum (official), Portuguese (official), Indonesian,
English
note: there are about 16 indigenous languages; Tetum, Galole,
Mambae, and Kemak are spoken by significant numbers of people

Togo
French (official and the language of commerce), Ewe and Mina
(the two major African languages in the south), Kabye (sometimes
spelled Kabiye) and Dagomba (the two major African languages in the
north)

Tokelau
Tokelauan (a Polynesian language), English

Tonga
Tongan, English

Trinidad and Tobago
English (official), Caribbean Hindustani (a
dialect of Hindi), French, Spanish, Chinese

Tunisia
Arabic (official and one of the languages of commerce),
French (commerce)

Turkey
Turkish (official), Kurdish, Dimli (or Zaza), Azeri, Kabardian
note: there is also a substantial Gagauz population in the European
part of Turkey

Turkmenistan
Turkmen 72%, Russian 12%, Uzbek 9%, other 7%

Turks and Caicos Islands
English (official)