| 260996 | Wandamen | siri | | | Fabritius (1855) | 1 |
| 24340 | Wandamen | siri | | | Voorhoeve (1975) | |
| 143886 | Wanambre | golik | | | Z'graggen (1980) | (one) |
| 214309 | Wambon | ˈⁿdɔminup̚ | | | Hughes (2009) | |
| 20972 | Wambon | omae | | | Voorhoeve (1975) | |
| 230965 | Wambon | omay | | | Healey (1970) | |
| 124999 | Wamas | monogɔta | | | Z'graggen (1980) | one |
| 196953 | Walio | aǏia gʌǏaǏilau | | | Conrad and Dye (1975) | |
| 27031 | Walak | omagi-at | | | Bromley (1967) | |
| 125016 | Wagi | usif | | | Z'graggen (1980) | one |
| 200815 | Wagi (Silibob Dialect) | usih | | | Spencer et al. (2011) | |
| 200958 | Wagi (Mis Dialect) | usif | | | Spencer et al. (2011) | |
| 200676 | Wagi (Kauris Dialect) | usih | | | Spencer et al. (2011) | |
| 200536 | Wagi (Kamba Dialect) | usih | | | Spencer et al. (2011) | |
| 201094 | Wagi (Foran Dialect) | usif | | | Spencer et al. (2011) | |
| 193432 | Wadaginam | mɨndambʌt | | | Z'graggen (1980) | one |
| 2678 | Waboda | kasepuro | | | Wurm (1973) | |
| 24748 | Wabo | bo-sandi | | | Voorhoeve (1975) | |
| 30166 | Viid | moŋgau | | | Voorhoeve (1971) | |
| 19239 | Viid | moŋgau | | | Voorhoeve (1975) | |
| 180929 | Uyajitaya | ititonoy | | | Z'graggen (1980) | one |
| 180928 | Uyajitaya | itonoka | | | Z'graggen (1980) | one |
| 216054 | Uyajitaya (Uya Dialect) | totonoi | | | Lambrecht et al. (2008) | |
| 216978 | Uyajitaya (Udibai Dialect) | itonogɑ | | | Rueck & Jore (2003) | |
| 216858 | Uyajitaya (Subalulu Dialect) | itotono | | | Rueck & Jore (2003) | |
| 216175 | Uyajitaya (Palipa Dialect) | totonoi | | | Rueck & Jore (2003) | |
| 217176 | Uyajitaya (Gisi Dialect) | itonogɑ | | | Rueck & Jore (2003) | |
| 216295 | Uyajitaya (Didiwala Dialect) | itotono | | | Rueck & Jore (2003) | |
| 180926 | Uya | itigoːg | | | Z'graggen (1980) | one |
| 125010 | Utu | oisak | | | Z'graggen (1980) | one |
| 193428 | Utarmbung | mɨsaka | | | Z'graggen (1980) | one |
| 19682 | Usku | kisifaini | | | Voorhoeve (1975) | |
| 30797 | Usku | kisifaini | | | Voorhoeve (1971) | |
| 143889 | Usan | gʌri | | | Z'graggen (1980) | (one) |
| 180923 | Urigina | kɛgrʌːk | | | Z'graggen (1980) | one |
| 200411 | Uri (Sintogoro Dialect) | kubinik | | | Retsema et al. (2009) | |
| 200324 | Uri (Siara Dialect) | kubinik | | | Retsema et al. (2009) | |
| 228220 | Ura | sigʌk | | | SIL (1970) | |
| 228727 | Ura | sɩgʌk | | | SIL (1971) | |
| 230775 | Ura | sʌgʌk | | | SIL (1975) | |
| 228908 | Unknown (possibly Konomala) | ikʌᵘ | | | SIL () | |
| 228918 | Unknown (possibly Konomala) | kaᵘkʌʔ | | | SIL () | |
| 143894 | Ukuriguma | kapaika | | | Z'graggen (1980) | (one) |
| 217514 | Uare | 'tʰipʌ | | | SIL (1988) | |
| 260240 | Uare | ˈtiba | | | Dutton (1970) | one |
| 23651 | Tunggare | duaʔa | | | Voorhoeve (1975) | |
| 214869 | Tsaukambo | ɸæˈliʔ | | | Hughes (2009) | |
| 19359 | Towei | giona | | | Voorhoeve (1975) | |
| 239176 | Tok Pisin | wan | one | | Abbott (1985) | |
| 221008 | Tokano | haʔmoko | | | SIL (1965) | |
