| 126731 | Yoidik | uo | | | Z'graggen (1980) | yes |
| 218868 | Yaweyuha | oo | | | SIL (1965) | |
| 75015 | Yaweyuha | oo | | | Scott (1978) | |
| 145460 | Yarawata | yua | | | Z'graggen (1980) | yes |
| 182447 | Yangulam | o | | | Z'graggen (1980) | yes |
| 231979 | Yagaria (Hira Dialect) | he | | | SIL (2000) | |
| 75016 | Yagaria | hé | | | Scott (1978) | |
| 182426 | Yabong | yo | | | Z'graggen (1980) | yes |
| 182427 | Yabong | oʔo | | | Z'graggen (1980) | yes |
| 145459 | Yaben | oe | | | Z'graggen (1980) | yes |
| 182444 | Waube | you | | | Z'graggen (1980) | yes |
| 182420 | Watiwa | ɔwe | | | Z'graggen (1980) | yes |
| 145440 | Waskia | ʌw | | | Z'graggen (1980) | yes |
| 145454 | Wanambre | ei | | | Z'graggen (1980) | yes |
| 126723 | Wamas | ʔuʔu | | | Z'graggen (1980) | yes |
| 126743 | Wagi | oɛ | | | Z'graggen (1980) | yes |
| 200852 | Wagi (Silibob Dialect) | jo | | | Spencer et al. (2011) | |
| 200996 | Wagi (Mis Dialect) | ʔɛʔe | | | Spencer et al. (2011) | |
| 200712 | Wagi (Kauris Dialect) | kɛnah | | | Spencer et al. (2011) | |
| 200574 | Wagi (Kamba Dialect) | ʔɛʔe | | | Spencer et al. (2011) | |
| 201131 | Wagi (Foran Dialect) | ʔɛʔe | | | Spencer et al. (2011) | |
| 194323 | Wadaginam | uri | | | Z'graggen (1980) | yes |
| 182442 | Uyajitaya | oɛ | | | Z'graggen (1980) | yes |
| 182443 | Uyajitaya | ɛ | | | Z'graggen (1980) | yes |
| 216083 | Uyajitaya (Uya Dialect) | jou | | | Lambrecht et al. (2008) | |
| 217006 | Uyajitaya (Udibai Dialect) | jou | | | Rueck & Jore (2003) | |
| 216886 | Uyajitaya (Subalulu Dialect) | jou | | | Rueck & Jore (2003) | |
| 216203 | Uyajitaya (Palipa Dialect) | jou | | | Rueck & Jore (2003) | |
| 217204 | Uyajitaya (Gisi Dialect) | jou | | | Rueck & Jore (2003) | |
| 216323 | Uyajitaya (Didiwala Dialect) | jou | | | Rueck & Jore (2003) | |
| 182440 | Uya | io | | | Z'graggen (1980) | yes |
| 126735 | Utu | žo | | | Z'graggen (1980) | yes |
| 194317 | Utarmbung | maŋgwa | | | Z'graggen (1980) | yes |
| 145458 | Usan | uɔ | | | Z'graggen (1980) | yes |
| 182436 | Urigina | ɛː | | | Z'graggen (1980) | yes |
| 182437 | Urigina | oː | | | Z'graggen (1980) | yes |
| 182438 | Urigina | ɛzɛ | | | Z'graggen (1980) | yes |
| 228317 | Ura | ɔɔᵘ | | | SIL (1970) | |
| 228824 | Ura | ɔɔᵘ | | | SIL (1971) | |
| 231665 | Ura | yei | | | SIL (1975) | |
| 145463 | Ukuriguma | yu | | | Z'graggen (1980) | yes |
| 217716 | Uare | 'ɔʔɛ | | | SIL (1988) | |
| 239228 | Tok Pisin | yes | yes | | Abbott (1985) | |
| 221159 | Tokano | oo | | | SIL (1965) | |
| 194335 | Tauya | oʔo | | | Z'graggen (1980) | yes |
| 218183 | Tauade | nu evo | | | SIL (1980) | |
| 31396 | Tairora, South | eo· | | | SIL (1976) | |
| 75014 | Tairora, North | eo | | | Scott (1978) | |
| 245863 | Tabriak | yau | | | SIL (1990) | |
| 246026 | Tabriak | yo | | | SIL (1967) | |
