| tuf | | Tunebo Central | C,
C,
M,
S,
Tunebo | 48 |
| tuk | | Turkmen | T,
S,
Turkmenian | 48 |
| tul | | Tula | N,
A,
V,
N,
A,
A,
W,
W,
Tula | 48 |
| tuo | | Tucano | | 48 |
| tur | | Turkish | A,
T,
S,
Turkish | 48 |
| tvl | | Tuvaluan | A,
M,
C,
E,
O,
C,
R,
C,
E,
P,
N,
S,
Ellicean | 60 |
| twe | | Teiwa | T,
A,
Pantar | 657 |
| tya | | Tauya | T,
M,
R,
Biyom-Tauya | 96 |
| tyn | | Kombai | T,
O,
A,
Dumut | 76 |
| ukr | | Ukrainian | I,
S,
East | 29 |
| ulk | | Meriam | Eastern Trans-Fly | 48 |
| ulw | | Ulwa | M,
S,
Sumuic | 0 |
| ung | | Ungarinyin | A,
Worrorran | 77 |
| unr | | Mundari-ICR-LB | H,
M,
K,
N,
M,
Austroasiatic | 48 |
| unr | | Mundari_ICR_TCC | A,
M,
N,
K,
Mundari | 48 |
| unr | | Mundari-ICR-KQ | A,
M,
N,
K,
M,
Ho-Mundari | 48 |
| urd | | Urdu | I,
I,
I,
C,
W,
Hindustani | 48 |
| urf | | Yadhaykenu | P,
P,
N,
N,
Uradhi | 48 |
| uri | | Urim | T,
Urim | 48 |
| usa | | Usarufa | T,
K,
K,
Gadsup-Auyana-Awa | 48 |
| ute | | Ute-Southern Paiute | U,
N,
N,
Southern | 48 |
| uur | | Ura | A,
M,
C,
E,
O,
C,
S,
Erromanga | 48 |
| vam | | Vanimo | S,
S,
N,
Eastern Skou | 56 |
| vig | | Viemo | N,
A,
V,
N,
G,
Viemo | 48 |
| vko | | Kodeoha | A,
M,
C,
E,
S,
B,
W,
West Coast | 76 |
| vma | | Martuthunira | A,
P,
W,
N,
S,
Pilbara | 54 |
| vnk | | Lovono | A,
M,
C,
E,
O,
T,
Utupua-Vanikoro | 76 |
| vnm | | Neve'ei | Oceanic | 48 |
| wao | | Wappo | Yukian | 48 |
| wba | | Warao | Language isolate | 48 |
| wbf | | Wara | N,
A,
V,
N,
G,
Wara-Natioro | 48 |
| wbv | | Watjarri | A,
P,
W,
N,
South-West | 76 |
| wgi | | Wahgi | T,
Chimbu–Wahgi | 70 |
| wgy | | Wargamay | A,
P,
Dyirbalic | 76 |
| wil | | Wilawila | A,
Worrorran | 69 |
| wmb | | Wambaya | A,
Mindi | 76 |
| wms | | Wambon | T,
O,
A,
Dumut | 76 |
| wnd | | Wandarang | A,
Maran | 76 |
| wnu | | Usan | T,
M,
C,
P,
Numugenan | 190 |
| woa | | Tyeraity | A,
Northern Daly | 76 |
| wol | | Wolof | N,
A,
A,
N,
S,
F,
Wolof | 48 |
| wpc | | Maco | | 48 |
| wra | | Warapu | S,
S,
S,
Piore River | 48 |
| wrg | | Warungu | A,
P,
Maric | 48 |
| wrk | | Garrwa | A,
Garrwan | 76 |
| wro | | Worrorra | A,
Worrorran | 76 |
| wsk | | Waskia | T,
M,
Kowan | 48 |
| wtm | | Mewati | I,
I,
I,
C,
Unclassified | 48 |
| wub | | Wunambal | A,
Worrorran | 76 |
| wut | | Wutung | S,
S,
N,
Eastern Skou | 0 |
