| U Language
|
| Uab Meto Language
|
| Uamué Language
|
| Uare Language
|
| Ubaghara Language
|
| Ubang Language
|
| Ubi Language
|
| Ubir Language
|
| Ubykh Language
|
| Uda Language
|
| Udi Language
|
| Udihe Language
|
| Udmurt Language
|
| Uduk Language
|
| Ufim Language
|
| Ugandan Sign Language
|
| Ugaritic Language
|
| Ughele language
|
| Ugong Language
|
| Uhami Language
|
| Uisai Language
|
| Ujir Language
|
| Ukaan Language
|
| Ukhwejo Language
|
| Ukit Language
|
| Ukpe-Bayobiri Language
|
| Ukpet-Ehom Language
|
| Ukrainian Language
|
| Ukrainian Sign Language
|
| Ukue Language
|
| Ukuriguma Language
|
| Ukwa Language
|
| Ukwuani-Aboh-Ndoni Language
|
| Ulau-Suain Language
|
| Ulch Language
|
| Ulithian Language
|
| Ullatan Language
|
| Ulukwumi Language
|
| Ulumanda' Language
|
| Uma Language
|
| Uma' Lung Language
|
| Umanakaina Language
|
| Umatilla Language
|
| Umbindhamu Language
|
| Umbrian Language
|
| Umbu-Ungu Language
|
| Umbugarla Language
|
| Umbundu Language
|
| Umbuygamu Language
|
| Umeda Language
|
| Umon Language
|
| Umotína Language
|
| Umpila Language
|
| Una Language
|
| Unami Language
|
| Uncoded languages Language
|
| Unde Kaili Language
|
| Uneapa language
|
| Uneme Language
|
| Unserdeutsch Language
|
| Unua Language
|
| Uokha Language
|
| Upper Necaxa Totonac Language
|
| Upper Umpqua Language
|
| Ura Language
|
| Uradhi Language
|
| Urak Lawoi' Language
|
| Urali Language
|
| Urapmin Language
|
| Urarina Language
|
| Urartian Language
|
| Urat Language
|
| Urdu Language
|
| Urhobo Language
|
| Uri Language
|
| Urigina Language
|
| Urim Language
|
| Urimo Language
|
| Uripiv-Wala-Rano-Atchin Language
|
| Urningangg Language
|
| Uru Language
|
| Uru-Eu-Wau-Wau Language
|
| Uru-Pa-In Language
|
| Uruangnirin Language
|
| Uruava Language
|
| Urubú-Kaapor Language
|
| Urubú-Kaapor Sign Language
|
| Uruguayan Sign Language
|
| Urum Language
|
| Urumi Language
|
| Usaghade Language
|
| Usan Language
|
| Usarufa Language
|
| Ushojo Language
|
| Usku Language
|
| Uspanteko Language
|
| Usui Language
|
| Utarmbung Language
|
| Ute-Southern Paiute Language
|
| Utu Language
|
| Uvbie Language
|
| Uvean, West Language
|
| Uya Language
|
| Uyghur Language
|
| Uzbek Language
|
| Uzbek, Northern Language
|
| Uzbek, Southern Language
|
| Uzekwe Language
|