| 537 | Zulu | Doke (1927) | Free |
| 585 | Zande | Gore (1926) | Free |
| 531 | Yuwana | Labrada (2016) | |
| 44 | Yuwaalaraay | Williams (1980) | Free |
| 488 | Yurutí | Kinch and Kinch (2000) | |
| 192 | Yulparija | Burridge (1996) | Free |
| 424 | Yukulta | Keen (1983) | Free |
| 518 | Yukpa | Segovia (1999) | |
| 506 | Yuhup | Bolaños and Epps (2009) | |
| 510 | Yucuna | Yukuna, Yukuna, Schauer and Schauer (2005) | |
| 408 | Yoruba | Bamgbose (1966) | Free |
| 121 | Yorta Yorta | Bowe and Morey (1999) | Free |
| 612 | Yom | Beacham (1968) | Free |
| 693 | Yir-Yoront | Alpher (1973) | Free |
| 52 | Yindjibarndi | Wordick (1982) | Free |
| 367 | Yimas | Foley (2005) | Free |
| 697 | Yidiny | Dixon (1977) | Free |
| 448 | Yeyi | Seidel (2008) | Free |
| 248 | Yessan-Mayo | Foreman (1974) | |
| 204 | Yelmek | Boelaars (1950) | |
| 698 | Yei | Carroll, M.J. (2017) | Free |
| 51 | Yawijibaya | Capell and Coate (1984) | |
| 430 | Yanomama | Migliazza (1972) | |
| 58 | Yalarnnga | Breen and Blake (2007) | Free |
| 251 | Yahadian | de Vries (2004) | |
| 476 | Yagua | Payne, Doris and Payne, Thomas (1990) | |
| 475 | Yagua | Payne, Doris and Payne, Thomas (1990) | |
| 138 | Yagaria | Renck (1975) | Free |
| 671 | Yadhaykenu | Crowley (1983) | |
| 392 | Yabem | Lynch et al. (2002) | Bound |
| 391 | Yabem | Lynch et al. (2002) | Free |
| 107 | Wunambal | Carr (2000) | Free |
| 479 | Woun Meu | Fonegra (2000) | |
| 48 | Worrorra | Capell and Coate (1984) | Free |
| 558 | Wolof | Ngom (2003) | Free |
| 266 | Wipim | Dondorp and Shim (1997) | |
| 49 | Wilawila | Capell and Coate (1984) | Free |
| 134 | Western Dani | Barclay (2008) | |
| 540 | West-Central Limba | Mukarovsky (1962/1963) | Free |
| 663 | Welsh-ICR-NE | King (2003) | |
| 657 | Welsh-ICR-KQ | King (2003) | |
| 497 | Wayuu | Mansen and Captain (2000) | |
| 64 | Watjarri | Douglas (1981) | Free |
| 141 | Wati-Wati | Blake et al. (2011) | Free |
| 270 | Waskia | Ross (2014) | |
| 353 | Warungu | Tsunoda (2011) | Free |
| 19 | Warta Thundai | Quinn () | Free |
| 189 | Warrnambool | Blake (2003) | Free |
| 63 | Wargamay | Dixon (1981) | Free |
| 224 | Warapu | Corris (2005) | |
