| 202869 | Setaman (Ngisokabip Dialect) | ou | | | Van Cott and Spencer (2010) | |
| 202747 | Setaman (Seltamin Dialect) | ou | | | Van Cott and Spencer (2010) | |
| 75013 | Siane | ô | | | Scott (1978) | |
| 126715 | Sihan | ois | | | Z'graggen (1980) | yes |
| 194314 | Sileibi | ʌː | | | Z'graggen (1980) | yes |
| 126734 | Silopi | žoː | | | Z'graggen (1980) | yes |
| 182415 | Sinsauru | ɔː | | | Z'graggen (1980) | yes |
| 182423 | Siroi | as | | | Z'graggen (1980) | yes |
| 218048 | Som | ewᶺk | | | SIL (1968) | |
| 182432 | Sop | aɔ | | | Z'graggen (1980) | yes |
| 182433 | Sop | yio | | | Z'graggen (1980) | yes |
| 182435 | Sumau | o | | | Z'graggen (1980) | yes |
| 182434 | Sumau | io | | | Z'graggen (1980) | yes |
| 245863 | Tabriak | yau | | | SIL (1990) | |
| 246026 | Tabriak | yo | | | SIL (1967) | |
| 75014 | Tairora, North | eo | | | Scott (1978) | |
| 31396 | Tairora, South | eo· | | | SIL (1976) | |
| 218183 | Tauade | nu evo | | | SIL (1980) | |
| 194335 | Tauya | oʔo | | | Z'graggen (1980) | yes |
| 221159 | Tokano | oo | | | SIL (1965) | |
| 239228 | Tok Pisin | yes | yes | | Abbott (1985) | |
| 217716 | Uare | 'ɔʔɛ | | | SIL (1988) | |
| 145463 | Ukuriguma | yu | | | Z'graggen (1980) | yes |
| 228824 | Ura | ɔɔᵘ | | | SIL (1971) | |
| 231665 | Ura | yei | | | SIL (1975) | |
| 228317 | Ura | ɔɔᵘ | | | SIL (1970) | |
| 182438 | Urigina | ɛzɛ | | | Z'graggen (1980) | yes |
| 182437 | Urigina | oː | | | Z'graggen (1980) | yes |
| 182436 | Urigina | ɛː | | | Z'graggen (1980) | yes |
| 145458 | Usan | uɔ | | | Z'graggen (1980) | yes |
| 194317 | Utarmbung | maŋgwa | | | Z'graggen (1980) | yes |
| 126735 | Utu | žo | | | Z'graggen (1980) | yes |
| 182440 | Uya | io | | | Z'graggen (1980) | yes |
| 216323 | Uyajitaya (Didiwala Dialect) | jou | | | Rueck & Jore (2003) | |
| 217204 | Uyajitaya (Gisi Dialect) | jou | | | Rueck & Jore (2003) | |
| 216203 | Uyajitaya (Palipa Dialect) | jou | | | Rueck & Jore (2003) | |
| 216886 | Uyajitaya (Subalulu Dialect) | jou | | | Rueck & Jore (2003) | |
| 217006 | Uyajitaya (Udibai Dialect) | jou | | | Rueck & Jore (2003) | |
| 216083 | Uyajitaya (Uya Dialect) | jou | | | Lambrecht et al. (2008) | |
| 182442 | Uyajitaya | oɛ | | | Z'graggen (1980) | yes |
| 182443 | Uyajitaya | ɛ | | | Z'graggen (1980) | yes |
| 194323 | Wadaginam | uri | | | Z'graggen (1980) | yes |
| 201131 | Wagi (Foran Dialect) | ʔɛʔe | | | Spencer et al. (2011) | |
| 200574 | Wagi (Kamba Dialect) | ʔɛʔe | | | Spencer et al. (2011) | |
| 200712 | Wagi (Kauris Dialect) | kɛnah | | | Spencer et al. (2011) | |
| 200996 | Wagi (Mis Dialect) | ʔɛʔe | | | Spencer et al. (2011) | |
| 200852 | Wagi (Silibob Dialect) | jo | | | Spencer et al. (2011) | |
| 126743 | Wagi | oɛ | | | Z'graggen (1980) | yes |
| 126723 | Wamas | ʔuʔu | | | Z'graggen (1980) | yes |
| 145454 | Wanambre | ei | | | Z'graggen (1980) | yes |
