| 340 | Warao | Romero-Figeroa (1997) | Free |
| 642 | Wára | Evans et al (2017) | |
| 608 | Wara | Prost (1968) | Free |
| 317 | Wappo | Thompson et al. (2006) | Free |
| 55 | Wangkajunga | Jones (2011) | Free |
| 43 | Wandarang | Heath (1980a) | Free |
| 150 | Wambon | de Vries and de Vries-Wiersma (1992) | |
| 106 | Wambaya | Nordlinger (1998) | Free |
| 111 | Wahgi | Phillips (1976) | Free |
| 605 | Viemo | Prost (1979) | Free |
| 225 | Vanimo | Ross (1980) | |
| 443 | Vaeakau-Taumako | Næss (2000) | Free |
| 364 | Ute-Southern Paiute | Givón (2011) | Free |
| 369 | Usarufa | Ross (1995) | Free |
| 217 | Usan: clean | Reesink (1987) | |
| 126 | Usan | Reesink (1987) | |
| 231 | Urim | Hemmilä and Luoma (1987) | |
| 417 | Urdu | Bhatia and Koul (2000) | Free |
| 436 | Ura | Crowley (1999) | Free |
| 74 | Upper Sorbian | Stone (1993b) | Free |
| 35 | Ungarinyin | Rumsey (1982) | Free |
| 79 | Ukrainian | Shevelov (1993) | Free |
| 46 | Tyeraity | Breen (1990) | |
| 487 | Tuyuca | Barnes and Malone (2000) | |
| 568 | Tuwuli | Harley (2005) | Free |
| 309 | Tuvaluan | Besnier (2000) | Free |
| 405 | Turkmen | Dulling (1960) | Free |
| 288 | Turkish | Göksel and Kerslake (2005) | |
| 520 | Tunebo Central | Headland (1994) | |
| 592 | Tula | Lukas (1955/1956) | Free |
| 185 | Tukang Besi | Donohue (1997) | |
| 532 | Tucano | Ramirez (1997) | |
| 407 | Tswana | Cole (1955) | Free |
| 305 | Tshangla | Andvik (2010) | Free |
| 511 | Tsafiki | Dickinson (2002) | |
| 516 | Tsafiki | Dickinson (2002) | |
| 606 | Toussian, Northern | Zaugg-Coretti (2005) | Free |
| 315 | Totonac (Misantla Dialect) | MacKay (1999) | Free |
| 130 | Torres Strait Creole | Shnukal (1988) | Free |
| 425 | Torau | Evans (2015) | Free |
| 25 | Toqabaqita | Lichtenberk (2008) | |
| 56 | Tolaki | Edwards (2012) | |
| 115 | Tok Pisin | Woodford (1979) | Free |
| 385 | Tobati | Donohue (2002) | Bound |
| 181 | Tobati | Donohue (2002) | Free |
| 256 | Toaripi | Brown (1972) | Free |
| 514 | Tinigua | Ortiz (2000) | |
| 61 | Timugon Murut | Brewis (2002) | Free |
| 623 | Tikar | Stanley (1991) | Free |
| 607 | Tiéfo | Winkelmann (1998) | Free |
