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 Europe
part of Turkey

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

Turks and Caicos Islands
English (official)

Tuvalu
Tuvaluan, English, Samoan, Kiribati (on the island of Nui)

Uganda
English (official national language, taught in grade schools,
used in courts of law and by most newspapers and some radio
broadcasts), Ganda or Luganda (most widely used of the Niger-Congo
languages, preferred for native language publications in the capital
and may be taught in school), other Niger-Congo languages,
Nilo-Saharan languages, Swahili, Arabic

Ukraine
Ukrainian (official) 67%, Russian 24%, small Romanian-,
Polish-, and Hungarian-speaking minorities

United Arab Emirates
Arabic (official), Persian, English, Hindi, Urdu

United Kingdom
English, Welsh (about 26% of the population of
Wales), Scottish form of Gaelic (about 60,000 in Scotland)

United States
English 82.1%, Spanish 10.7%, other Indo-European
3.8%, Asian and Pacific island 2.7%, other 0.7% (2000 census)
note: Hawaiian is an official language in the state of Hawaii