| 243439 | Pahi | tafəki | | | Laycock (1968) | |
| 198556 | Owiniga | ise | | | Conrad and Dye (1975) | |
| 246264 | Owiniga | isɩ | | | SIL (1963) | |
| 232984 | Owiniga | ise | | | SIL (1972) | |
| 212871 | Orya | mahal | | | Clouse (1997) | |
| 4658 | Orokolo | auli | | | Brown (1973) | |
| 4062 | Orokolo (Kaipi Dialect) | lauri | | | Brown (1973) | |
| 3974 | Orokolo (Kaipi Dialect) | uri | | | Brown (1973) | |
| 55179 | Orokaiva (Sose Dialect) | ivivi | tongue | | Smallhorn (2011) | |
| 55182 | Orokaiva (Sairope Dialect) | iβiβi | tongue | | Smallhorn (2011) | |
| 28363 | Orokaiva (Sairope Dialect) | iƀiƀi | | | Wilson (1969) | |
| 55178 | Orokaiva (Kendata Dialect) | iβiβi | tongue | | Smallhorn (2011) | |
| 28223 | Orokaiva (Kendata Dialect) | iƀiƀi | | | Wilson (1969) | |
| 55177 | Orokaiva (Jegasa-Sarau Dialect) | iwiwi | tongue | | Smallhorn (2011) | |
| 55176 | Orokaiva (Jegarata-Kakendetta Dialect) | iβiβi | tongue | | Smallhorn (2011) | |
| 28188 | Orokaiva (Jegarata-Kakendetta Dialect) | iƀiƀi | | | Wilson (1969) | |
| 28140 | Orokaiva (Dobuduru Dialect) | iƀiƀi | | | Wilson (1969) | |
| 55174 | Orokaiva (Dobuduru Dialect) | iwiwi | tongue | | Smallhorn (2011) | |
| 55175 | Orokaiva (Dobuduru Dialect) | iβiβi | tongue | | Smallhorn (2011) | |
| 4554 | Opao | halela | | | Brown (1973) | |
| 154900 | Ono (Kip Dialect) | belakam- | | | McElhanon and Voorhoeve (1970) | tongue |
| 91510 | Ono | belakami- | (its) tongue | | McElhanon (1967) | (its) tongue |
| 243413 | One, Inebu | alfoi | | | Laycock (1968) | |
| 5986 | Onabasulu | eane | | | Shaw (1973) | |
| 16091 | Onabasulu | ɛane | | | Shaw (1986) | |
| 14229 | Ömie | bitar-e | tongue | | Dutton (2010) | |
| 3661 | Omati | komene | | | Franklin (1973) | |
| 243416 | Olo | non | | | Laycock (1968) | |
| 197600 | Oksapmin (Lower Dialect) | paŋ | | | Loughnane and Fedden (2011) | |
| 75513 | Oirata | u'hul | | | Taber (1993) | |
| 176759 | Ogea | muñʌge | | | Z'graggen (1980) | tongue |
| 16191 | Odoodee (Kalamo Dialect) | i | | | Shaw (1986) | |
| 16291 | Odoodee (Hesif Dialect) | i | | | Shaw (1986) | |
| 197464 | Odiai | dʌgʌrʌ | | | Conrad and Dye (1975) | |
| 212865 | Obokuitai | a-ɾija | | | Clouse (1997) | |
| 199996 | Numanggang (Tumung Dialect) | mɑbelem | | | Retsema et al. (2009) | |
| 200076 | Numanggang (Kawalang Dialect) | mebem | | | Retsema et al. (2009) | |
| 154890 | Numanggang | mambam | | | McElhanon and Voorhoeve (1970) | tongue |
| 154864 | Nukna (Hamelengan Dialect) | elʌk | | | McElhanon and Voorhoeve (1970) | tongue |
| 154863 | Nukna | elʌk | | | McElhanon and Voorhoeve (1970) | tongue |
| 199885 | Nuk (Tunam Dialect) | mɑmbeɣɑŋgɑ | | | Retsema et al. (2009) | |
| 199774 | Nuk (Tamben Dialect) | mɛbɨn | | | Retsema et al. (2009) | |
| 154893 | Nuk | mamben | | | McElhanon and Voorhoeve (1970) | tongue |
| 952 | Northeast Kiwai (Urama Dialect) | totoʔbe | | | Wurm (1973) | |
| 2936 | Northeast Kiwai (Gope Dialect) | totobe | | | Wurm (1973) | |
| 31429 | Northeast Kiwai (Gibaio Dialect) | t:o't:o:˥˩bɛ:˥˩ | | | Wurm (1973) | |
| 17241 | Northeast Kiwai (Arigibi Dialect) | tótoʔopɛ | | | Wurm (1973) | |
| 154902 | Nomu | neberam | | | McElhanon and Voorhoeve (1970) | tongue |
| 120428 | Nobonob | balamu- | | | Z'graggen (1980) | tongue |
| 243421 | Ningil | wa:r | | | Laycock (1968) | |
