| 237739 | Wogamusin | mbotom | | | Foley (2005) | |
| 24718 | Woi | ai | | | Voorhoeve (1975) | |
| 25314 | Wolani | piya | | | Voorhoeve (1975) | |
| 7272 | Wolani (Upper Mbijandoga Dialect) | pija | | | Larson & Larson (1972) | |
| 23821 | Wutung | ri | | | Voorhoeve (1975) | |
| 261185 | Yaben | namu | | | Pick (2019) | tree |
| 142230 | Yaben | nʌ:mu | | | Z'graggen (1980) | tree |
| 179257 | Yabong | wi | | | Z'graggen (1980) | tree |
| 74676 | Yagaria | yáva | | | Scott (1978) | |
| 221475 | Yagaria (Hira Dialect) | zawa | | | SIL (2000) | |
| 231933 | Yagaria (Hira Dialect) | y̶awa | zawa | | SIL (2000) | |
| 1521 | Yagwoia | isa | | | Lloyd (1973) | |
| 22217 | Yahadian | wi | | | Voorhoeve (1975) | |
| 244171 | Yahang | lou | | | Laycock (1968) | |
| 33948 | Yale, Korsarek | kal | | | Heeschen (1978) | |
| 156442 | Yale, Korsarek | kal | | | McElhanon and Voorhoeve (1970) | tree |
| 19897 | Yale, Korsarek | kal | | | Voorhoeve (1975) | |
| 26998 | Yali, Angguruk | e | wood | | Bromley (1967) | tree (wood) |
| 19857 | Yali, Pass Valley | kal | | | Voorhoeve (1975) | |
| 261184 | Yamben | aŋgan | | | Pick (2019) | tree |
| 179271 | Yangulam | be | | | Z'graggen (1980) | tree |
| 244166 | Yangum Mon | nim | | | Laycock (1968) | |
| 29172 | Yaqay | de | | | Voorhoeve (1971) | |
| 157175 | Yaqay | de | | | McElhanon and Voorhoeve (1970) | tree |
| 23032 | Yaqay | de | | | Voorhoeve (1975) | |
| 220286 | Yaqay (Kogo Dialect) | dɛ | | | Kriens & Lebold (2010) | |
| 222690 | Yaqay (Kotup Dialect) | dɛ | | | Kriens & Lebold (2010) | |
| 222969 | Yaqay (Rayam Dialect) | dɛ | | | Kriens & Lebold (2010) | |
| 223093 | Yaqay (Wairu Dialect) | dɛ | | | Kriens & Lebold (2010) | |
| 223324 | Yaqay (Wanggate Dialect) | dɛ | | | Kriens & Lebold (2010) | |
| 142231 | Yarawata | nʌ:ma | | | Z'graggen (1980) | tree |
| 244156 | Yau | nimpip | | | Laycock (1968) | |
| 20499 | Yawa | nyo | | | Voorhoeve (1975) | |
| 74675 | Yaweyuha | ya | | | Scott (1978) | |
| 220888 | Yaweyuha | y̠a | | | SIL (1965) | |
| 196779 | Yawiyo (Wosawari Dialect) | yanu | | | Conrad and Dye (1975) | |
| 55344 | Yegha (Ambe-Dofo Dialect) | yii | type of tree | | Smallhorn (2011) | |
| 55364 | Yegha (Korafe Dialect) | i[aka] | tree | | Smallhorn (2011) | |
| 55367 | Yegha (Korafe Dialect) | i[ka] | wood | | Smallhorn (2011) | |
| 55345 | Yegha (Oukena Dialect) | yi | tree | | Smallhorn (2011) | |
| 55346 | Yegha (Yega Dialect) | li | tree | | Smallhorn (2011) | |
| 20822 | Yei | per | | | Voorhoeve (1975) | |
| 28489 | Yekora | ĩ | | | Wilson (1969) | |
| 55302 | Yekora | ĩ | wood | | Smallhorn (2011) | |
| 26046 | Yelmek | doyo | | | Voorhoeve (1975) | |
| 157176 | Yelmek | doyo | | | McElhanon and Voorhoeve (1970) | tree |
| 244183 | Yessan-Mayo (Warasai Dialect) | meʔ | | | Laycock (1968) | |
| 244182 | Yessan-Mayo | me | | | Laycock (1968) | |
| 237740 | Yessan-Mayo | me | | | Foley (2005) | |
| 23901 | Yetfa | yau | | | Voorhoeve (1975) | |
