|-
!uam 
| || ||I/E|| || ||Uamué|| || || || ||
|-
!uan 
| || ||I/L|| || ||Kuan|| || || || ||
|-
!uar 
| || ||I/L|| || ||Tairuma|| || || || ||
|-
!uba 
| || ||I/L|| || ||Ubang|| || || || ||
|-
!ubi

Ubi language

Ubi is an Afro-Asiatic language spoken in central Chad.-External links:**...

 
| || ||I/L|| || ||Ubi|| || || || ||
|-
!ubl 
| || ||I/L|| || ||Buhi'non Bikol|| || || || ||
|-
!(ubm)
| || || || || ||Upper Baram Kenyah|| || || || ||
|-
!ubr 
| || ||I/L|| || ||Ubir|| || || || ||Ubir
|-
!ubu 
| || ||I/L|| || ||Umbu-Ungu|| || || || ||
|-
!uby

Ubykh language

Ubykh or Ubyx is an extinct language of the Northwestern Caucasian group, spoken by the Ubykh people...

 
| || ||I/E|| ||atʷaχəbza||Ubykh||oubykh||ubijé||尤比克语||убыхский||
|-
!uda 
| || ||I/L|| || ||Uda|| || || || ||
|-
!ude 
| || ||I/L|| || ||Udihe|| || ||乌德语|| ||
|-
!udg 
| || ||I/L|| || ||Muduga|| || || || ||
|-
!udi

Udi language

The Udi language, spoken by the Udi people, is a member of the Lezgic branch of the Northeast Caucasian language family. It is believed an earlier form of it was the main language of Caucasian Albania, which stretched from south Dagestan to current day Azerbaijan.The language is spoken by about...

 
| || ||I/L|| ||удин||Udi||oudi||udi|| || ||
|-
!udj 
| || ||I/L|| || ||Ujir|| || || || ||Ujir
|-
!udl

Wuzlam language

Wuzlam, also called Uldeme, is an Afro-Asiatic language spoken in northern Cameroon.-References:* * Veronique de Colombel. 1997. La langue ouldeme nord-Cameroun: précis de grammaire, texte, lexique. Paris: Association LInguistique Africaine....

 
| || ||I/L|| || ||Wuzlam|| || || || ||
|-
!udm

Udmurt language

Udmurt is an Uralic language, part of the Permic subgroup, spoken by the Udmurt natives of the Russian constituent republic of Udmurtia, where it is coofficial with Russian. It is written in the Cyrillic script with five additional characters. Together with Komi and Komi-Permyak languages, it...

 
| ||udm||I/L|| ||удмурт||Udmurt||oudmourte||udmurto||乌德穆尔特语||удмуртский||Udmurtisch
|-
!udu

Uduk language

Uduk, also known as Tw'ampa, is a Koman language spoken in the Gambela region in western Ethiopia, and across the border in the Upper Nile state of South Sudan. It is spoken by approximately 20,000 people in Ethiopia; the number of speakers in South Sudan is unknown...

 
| || ||I/L|| || ||Uduk|| || || || ||
|-
!ues 
| || ||I/L|| || ||Kioko|| || || || ||
|-
!ufi 
| || ||I/L|| || ||Ufim|| || || || ||
|-
!uga

Ugaritic language

The following table shows Proto-Semitic phonemes and their correspondences among Ugaritic, Arabic and Tiberian Hebrew:-Grammar:Ugaritic is an inflected language, and as a Semitic language its grammatical features are highly similar to those found in Classical Arabic and Akkadian...

 
| ||uga||I/A|| || ||Ugaritic||ougaritique||ugarítico||乌加里特语||угаритский||Ugaritisch
|-
!ugb 
| || ||I/E|| || ||Kuku-Ugbanh|| || || || ||
|-
!uge

Ughele language

Ughele is an Oceanic language spoken by about 1200 people on Rendova Island, Solomon Islands....

 
| || ||I/L|| || ||Ughele|| || || || ||
|-
!ugn

Ugandan Sign Language

Ugandan Sign Language is the deaf sign language of Uganda. Uganda was the second country in the world to recognize sign language in its constitution, in 1995. A Ugandan Sign Language Dictionary has been published. However, knowledge of USL is primarily urban, as access to education for the rural...

 
| || ||I/L|| || ||Ugandan Sign Language|| || ||乌干达手语|| ||Ugandische Zeichensprache
|-
!ugo

Ugong language

The Ugong language is an endangered language of Western Thailand, spoken in isolated pockets in Kanchanaburi, Uthai Thani, and Suphanburi provinces. The ethnic group was first known to Westerners in the 1920s, when the language was already considered in severe decline...

 
| || ||I/L|| || ||Ugong|| || || || ||
|-
!ugy 
| || ||I/L|| || ||Uruguayan Sign Language|| || ||乌拉圭手语|| ||
|-
!uha 
| || ||I/L|| || ||Uhami|| || || || ||
|-
!uhn 
| || ||I/L|| || ||Damal|| || || || ||
|-
!uig 
|ug||uig||I/L|| ||ئۇيغۇرچە||Uighur||ouïgour||uigur||维吾尔语||уйгурский||Uigurisch
|-
!uis 
| || ||I/L|| || ||Uisai|| || || || ||
|-
!uiv 
| || ||I/L|| || ||Iyive|| || || || ||
|-
!uji 
| || ||I/L|| || ||Tanjijili|| || || || ||
|-
!uka 
| || ||I/L|| || ||Kaburi|| || || || ||
|-
!ukg 
| || ||I/L|| || ||Ukuriguma|| || || || ||
|-
!ukh 
| || ||I/L|| || ||Ukhwejo|| || || || ||
|-
!ukl 
| || ||I/L|| || ||Ukrainian Sign Language|| || ||乌克兰手语|| ||Ukrainische Zeichensprache
|-
!ukp 
| || ||I/L|| || ||Ukpe-Bayobiri|| || || || ||
|-
!ukq 
| || ||I/L|| || ||Ukwa|| || || || ||
|-
!ukr

Ukrainian language

Ukrainian is a language of the East Slavic subgroup of the Slavic languages. It is the official state language of Ukraine. Written Ukrainian uses a variant of the Cyrillic alphabet....

 
|uk||ukr||I/L|| ||українська||Ukrainian||ukrainien||ucrani(an)o||乌克兰语||украинский||Ukrainisch
|-
!uks 
| || ||I/L|| || ||Urubú-Kaapor Sign Language|| || || || ||
|-
!uku 
| || ||I/L|| || ||Ukue|| || || || ||
|-
!ukw

Ukwuani-Aboh-Ndoni language

Ukwuani, Aboh, and Ndoni are a cluster of Igboid dialects of Nigeria....

 
| || ||I/L|| || ||Ukwuani-Aboh-Ndoni|| || || || ||
|-
!ula 
| || ||I/L|| || ||Fungwa|| || || || ||
|-
!ulb 
| || ||I/L|| || ||Ulukwumi|| || || || ||
|-
!ulc

Ulch language

The Ulch language, or Olcha, is a Tungusic language spoken by the Ulch people in Siberia.- Alphabet :In brackets are letters that are used in writing, though not officially included in the alphabet....

 
| || ||I/L|| || ||Ulch|| || ||乌利奇语||ульчский||
|-
!ulf

Usku language

Usku, or Afra, is a nearly extinct and poorly documented Papuan language spoken by about 20 people, mostly adults, in Usku village, Papua, Indonesia. Wurm placed it as an independent branch of Trans–New Guinea, but Ross could not find enough evidence to classify it.-External links:*...

 
| || ||I/L|| || ||Usku|| || || || ||
|-
!uli

Ulithian language

Ulithian is the name of the language spoken on Ulithi atoll and neighboring islands. Ulithian is one of the 6 official languages of the Federated States of Micronesia. There are some 3,000 speakers, although only 700 of these live on Ulithi atoll....

 
| || ||I/L|| || ||Ulithian||ulithian|| || || ||
|-
!ulk

Meriam language

Meriam is the language of the people of Mer , Waier and Dauar, Erub and Ugar in the...

 
| || ||I/L|| || ||Meriam|| || || || ||
|-
!ull 
| || ||I/L|| || ||Ullatan|| || || || ||
|-
!ulm 
| || ||I/L|| || ||Ulumanda'|| || || || ||
|-
!uln

Unserdeutsch language

Unserdeutsch , or Rabaul Creole German, is a German-based creole language spoken primarily in Papua New Guinea. It was formed among the New Guinean children residing in a German-run orphanage...

 
| || ||I/L|| || ||Unserdeutsch||unserdeutsch|| || || ||Unserdeutsch
|-
!ulu 
| || ||I/L|| || ||Uma' Lung|| || || || ||
|-
!ulw 
| || ||I/L|| || ||Ulwa|| || || || ||
|-
!uma

Umatilla language

Umatilla is a variety of Southern Sahaptin, part of the Sahaptian subfamily of the Plateau Penutian group. It was spoken during late aboriginal times along the Columbia River and is therefore also called Columbia River Sahaptin. It is currently spoken as a first language by a few dozen elders and...

 
| || ||I/L|| || ||Umatilla|| || || || ||
|-
!umb 
| ||umb||I/L|| || ||Umbundu||umbundu|| ||翁本杜语||умбунду||
|-
!umc 
| || ||I/A|| || ||Marrucinian|| || ||马鲁西尼语|| ||
|-
!umd 
| || ||I/E|| || ||Umbindhamu|| || || || ||
|-
!umg 
| || ||I/E|| || ||Umbuygamu|| || || || ||
|-
!umi 
| || ||I/L|| || ||Ukit|| || || || ||
|-
!umm 
| || ||I/L|| || ||Umon|| || || || ||
|-
!umn 
| || ||I/L|| || ||Makyan Naga|| || || || ||
|-
!umo

Umotína language

Umotína is a recently extinct language of Brazil. It was one of the few languages in the world with linguolabial consonants....

 
| || ||I/E|| || ||Umotína|| || || || ||
|-
!ump

Umpila language

Umpila is an aboriginal Australian language, or actually a dialect cluster, of the Cape York Peninsula.- Varieties :The chief varieties of Umpila, variously considered dialects or distinct languages, are:...

 
| || ||I/L|| || ||Umpila|| || || || ||
|-
!umr

Umbugarla language

The Umbugarla language is an Australian language isolate spoken by just three people in Arnhem Land, northern Australia, as of 1981. It may now be extinct....

 
| || ||I/E|| || ||Umbugarla|| || || || ||
|-
!ums 
| || ||I/L|| || ||Pendau|| || || || ||
|-
!umu

Munsee language

Munsee is an endangered language of the Eastern Algonquian subgroup of the Algonquian language family, itself a branch of the Algic language family. Munsee is one of the two Delaware languages...

 
| || ||I/L|| || ||Munsee|| || || || ||
|-
!una 
| || ||I/L|| || ||Watut, North|| || || || ||
|-
!und
| ||und||S/S||*||||Undetermined||indéterminée||indeterminada|| ||неидентифицированный||
|-
!une 
| || ||I/L|| || ||Uneme|| || || || ||
|-
!ung

Ngarinyin language

Ngarinyin, Ungarinjin, is a moribund Australian Aboriginal language of Western Australia.-Classification:Ngarinyin is usually classified as a Worrorran language. R. M. W. Dixon , however, regards the Worrorran family as simply an areal group....

 
| || ||I/L|| || ||Ngarinyin|| || || || ||
|-
!unk 
| || ||I/L|| || ||Enawené-Nawé|| || || || ||
|-
!unm

Unami language

Unami is an extinct Algonquian language formerly spoken by Lenape people in what is now the lower Hudson Valley area and New York Harbor area, New Jersey, Pennsylvania and Delaware, but later in Ontario and Oklahoma. It is one of the two Delaware languages, the other being Munsee...

 
| || ||I/E|| || ||Unami|| || || || ||
|-
!unp 
| || ||I/L|| || ||Worora|| || || || ||
|-
!unr

Mundari language

The Mundari are a small ethnic group of South Sudan and one of the Nilotic peoples.The group is composed of cattle-herders and agriculturalists and are part of Karo people which also includes Bari, Pojulu, Kakwa, Kuku and Nyangwara...

 
| || ||I/L|| || ||Mundari|| || ||蒙达里语|| ||
|-
!unx 
| || ||I/L|| || ||Munda|| || ||蒙达语|| ||
|-
!unz 
| || ||I/L|| || ||Kaili, Unde|| || || || ||
|-
!uok 
| || ||I/L|| || ||Uokha|| || || || ||
|-
!upi 
| || ||I/L|| || ||Umeda|| || || || ||
|-
!upv 
| || ||I/L|| || ||Uripiv-Wala-Rano-Atchin|| || || || ||
|-
!ura

Urarina language

Urarina is a language spoken in Peru, specifically in the Loreto Region of Northwest Peru, by the Urarina people. There are only around 3000 speakers alive today according to the 2002 Ethnologue. It uses a Latin script...

 
| || ||I/L|| || ||Urarina|| || || || ||
|-
!urb 
| || ||I/L|| || ||Urubú-Kaapor|| ||urubú-kaapor|| || ||
|-
!urc

Urningangg language

Urningangga, also spelled Uningangk and Wuningak, is an extinct Australian Aboriginal language....

 
| || ||I/E|| || ||Urningangg|| || || || ||
|-
!urd 
|ur||urd||I/L|| ||اردو||Urdu||ourdou||Urdu||乌尔都语; 乌都语; 晤鲁都语||урду||Urdu
|-
!ure

Uru language

The Uru language, also known as Iru-Itu , Morato, or Muratu, is the language of the Uros, an Amerindian people. In the year 2000 it had 2 remaining native speakers out of an ethnic group of 100 to 150 people in the La Paz Department, Ingavi Province, near Lake Titicaca in Bolivia, the rest having...

 
| || ||I/L|| || ||Uru|| || || || ||
|-
!urf

Uradhi language

Urradhi is the south-western dialect of the Urradhi group of Paman languages on Cape York Peninsula of Queensland, Australia, and is possibly extinct. It is spoken by the Urradhi people, and is made of urra "this" and the proprietive dhi "having"...

 
| || ||I/E|| || ||Uradhi|| || || || ||
|-
!urg 
| || ||I/L|| || ||Urigina|| || || || ||
|-
!urh

Urhobo language

Urhobo is one of the Edoid languages and is spoken by the Urhobo people of southern Nigeria.-Phonology:Urhobo has a conservative consonant inventory for an Edoid language...

 
| || ||I/L|| || ||Urhobo|| || || || ||
|-
!uri

Urim language

Urim is a Torricelli language of Papua New Guinea. It is also known as Kalp; dialects are Kukwo, Yangkolen....

 
| || ||I/L|| || ||Urim|| || || || ||
|-
!urk 
| || ||I/L|| || ||Urak Lawoi'|| || || || ||
|-
!url 
| || ||I/L|| || ||Urali|| || || || ||
|-
!urm

Urapmin language

Urapmin is a language spoken by the Urapmin people in Papua New Guinea.Urapmin is situated geographically between Tifal and Telefol, and is also linguistically between them....

 
| || ||I/L|| || ||Urapmin|| || || || ||
|-
!urn 
| || ||I/L|| || ||Uruangnirin|| || || || ||
|-
!uro

Ura language (Papua New Guinea)

Ura is a Papuan language spoken in East New Britain Province on the island of New Britain, Papua New Guinea. Uramät is the autonym of the people....

 
| || ||I/L|| || ||Ura (Papua New Guinea)|| || || || ||
|-
!urp 
| || ||I/L|| || ||Uru-Pa-In|| || || || ||
|-
!urr 
| || ||I/L|| || ||Lehalurup|| || || || ||
|-
!urt

Urat language

Urat is a Torricelli language spoken by a decreasing number of people in Papua New Guinea....

 
| || ||I/L|| || ||Urat|| || || || ||
|-
!uru 
| || ||I/E|| || ||Urumi|| || || || ||
|-
!urv

Uruava language

Uruava is an extinct Austronesian language formerly spoken in southeast Bougainville, Papua New Guinea.-External links:*...

 
| || ||I/E|| || ||Uruava|| || || || ||
|-
!urw

Sop language

Sop is a Rai Coast language spoken in Madang Province, Papua New Guinea by approximately 2,500 people.The Sop language has been labelled under several different names. Among the names are Usino, Usina, Sopu, and Igoi. The Ethnologue uses the name Sop for this language. Its Ethnologue code is URW...

 
| || ||I/L|| || ||Sop|| || || || ||
|-
!urx 
| || ||I/L|| || ||Urimo|| || || || ||
|-
!ury

Orya language

Orya is a Papuan language spoken in Indonesia. Warpok is the Nimboran name....

 
| || ||I/L|| || ||Orya|| || || || ||
|-
!urz 
| || ||I/L|| || ||Uru-Eu-Wau-Wau|| ||uru-eu-wau-wau|| || ||
|-
!usa

Usarufa language

Usarufa is a Kainantu language spoken by the people of the same name in Papua New Guinea. It belongs to the Gauwa branch of the Kainantu family of the Kainantu–Goroka languages...

 
| || ||I/L|| || ||Usarufa|| || || || ||
|-
!ush 
| || ||I/L|| || ||Ushojo|| || || || ||
|-
!usi 
| || ||I/L|| || ||Usui|| || || || ||
|-
!usk 
| || ||I/L|| || ||Usaghade|| || || || ||
|-
!usp 
| || ||I/L|| || ||Uspanteco|| || || || ||
|-
!usu 
| || ||I/L|| || ||Uya|| || || || ||
|-
!uta 
| || ||I/L|| || ||Otank|| || || || ||
|-
!ute 
| || ||I/L|| || ||Ute-Southern Paiute||ute|| || || ||
|-
!utp 
| || ||I/L|| || ||Amba (Solomon Islands)|| || || || ||
|-
!utr 
| || ||I/L|| || ||Etulo|| || || || ||
|-
!utu 
| || ||I/L|| || ||Utu|| || || || ||
|-
!uum

Urum language

Urum is a Turkic language spoken by several thousand people who inhabit a few villages in the Southeastern Ukraine and in diaspora communities worldwide. The Urum language is often considered a variant of the Crimean Tatar language....

 
| || ||I/L|| ||Урум||Urum|| || ||乌鲁姆语|| ||
|-
!uun 
| || ||I/L|| || ||Kulon-Pazeh|| || ||龟仑语; 巴宰语||кулон-пазе||Kulon-Pazeh
|-
!uur 
| || ||I/L|| || ||Ura (Vanuatu)|| || || || ||
|-
!uuu

U language

The U language is spoken by 40,000 people in the Yunnan province of China and possibly Burma. It is classified as a Mon–Khmer language in the Palaungic subbranch.-External links:* from Ethnologue...

 
| || ||I/L|| || ||U|| || ||乌语|| ||
|-
!uve 
| || ||I/L|| || ||Uvean, West|| || || || ||
|-
!uvh 
| || ||I/L|| || ||Uri|| || || || ||
|-
!uvl

Lote language

Lote is an Austronesian language spoken by about 6,000 people who live around Cape Dampier on the south coast of New Britain in Papua New Guinea. The language was earlier known as Uvol, after the name of a local river where the first wharf and later airstrip were built.-References:Pearson, Greg,...

 
| || ||I/L|| || ||Lote|| || || || ||
|-
!uwa 
| || ||I/L|| || ||Kuku-Uwanh|| || || || ||
|-
!uya 
| || ||I/L|| || ||Doko-Uyanga|| || || || ||
|-
!uzb

Uzbek language

Uzbek is a Turkic language and the official language of Uzbekistan. It has about 25.5 million native speakers, and it is spoken by the Uzbeks in Uzbekistan and elsewhere in Central Asia...

 
|uz||uzb||M/L|| ||Ўзбек||Uzbek||ou(s)zbek||uzbeco||乌兹别克语; 乌孜别克语||узбекский||Usbekisch
|-
!uzn

Northern Uzbek language

Northern Uzbek is a Turkic language spoken in Uzbekistan and the People's Republic of China.-References:*...

 
| || ||I/L|| || ||Uzbek, Northern|| || ||北乌兹别克语|| ||
|-
!uzs

Southern Uzbek language

Southern Uzbek is a Turkic language spoken in Faryab Province in north Afghanistan and by a small refugee community in Turkey.-References:*...

| || ||I/L|| || ||Uzbek, Southern|| || ||南乌兹别克语|| ||
|}