| 26115 | Nafri | tənə | | | Voorhoeve (1975) | |
| 197801 | Nagatiman | kʋǏaᵽi | | | Conrad and Dye (1975) | |
| 214054 | Nakai | ˈmimtuk | | | Hughes (2009) | |
| 199144 | Nakame (Dzenzen Dialect) | bɑhɑle | | | Retsema et al. (2009) | |
| 199757 | Nakame (Gufin Dialect) | buhɑ:li | | | Retsema et al. (2009) | |
| 199671 | Nakame (Munguleng Dialect) | bohɑ:li | | | Retsema et al. (2009) | |
| 199271 | Nakame (Popof Dialect) | bohɑ | | | Retsema et al. (2009) | |
| 199272 | Nakame (Popof Dialect) | bohɑle | | | Retsema et al. (2009) | |
| 198785 | Nakame (Sikalan Dialect) | mambəp | | | Retsema et al. (2009) | |
| 198904 | Nakame (Sokan Dialect) | bɨfɑ | | | Retsema et al. (2009) | |
| 199024 | Nakame (Wasin Dialect) | bifa | | | Retsema et al. (2009) | |
| 126248 | Nake | gatitu | | | Z'graggen (1980) | night |
| 126247 | Nake | ɔtu | | | Z'graggen (1980) | night |
| 23489 | Nalca | inimik | | | Voorhoeve (1975) | |
| 20407 | Ndom | ert | | | Voorhoeve (1975) | |
| 260699 | Nedebang | ilqx'an | | | Stokhof (1975) | |
| 260700 | Nedebang | ''ilaqx'anα | | | Stokhof (1975) | |
| 194073 | Nend | sɨgwu | | | Z'graggen (1980) | night |
| 25835 | Nimboran | tenti | | | Voorhoeve (1975) | |
| 198237 | Nimo | pimi | | | Conrad and Dye (1975) | |
| 20851 | Ninggerum | amwomdi | | | Voorhoeve (1975) | |
| 126262 | Nobonob | tuqan | | | Z'graggen (1980) | night |
| 126261 | Nobonob | suban | | | Z'graggen (1980) | night |
| 17260 | Northeast Kiwai (Arigibi Dialect) | 'dú·ʔi | | | Wurm (1973) | |
| 31448 | Northeast Kiwai (Gibaio Dialect) | 'dúò | | | Wurm (1973) | |
| 2955 | Northeast Kiwai (Gope Dialect) | duo | | | Wurm (1973) | |
| 971 | Northeast Kiwai (Urama Dialect) | duo | | | Wurm (1973) | |
| 199860 | Nuk (Tamben Dialect) | tim | | | Retsema et al. (2009) | |
| 199973 | Nuk (Tunam Dialect) | tim | | | Retsema et al. (2009) | |
| 200136 | Numanggang (Kawalang Dialect) | timiŋ | | | Retsema et al. (2009) | |
| 200060 | Numanggang (Tumung Dialect) | timiŋ | | | Retsema et al. (2009) | |
| 216732 | Obokuitai | sukwig̚ | | | Clouse (1997) | |
| 197440 | Odiai | de | | | Conrad and Dye (1975) | |
| 16310 | Odoodee (Hesif Dialect) | nɔluga | | | Shaw (1986) | |
| 16210 | Odoodee (Kalamo Dialect) | gaisi | | | Shaw (1986) | |
| 182022 | Ogea | oru | | | Z'graggen (1980) | night |
| 75389 | Oirata | tete'manahe | | | Taber (1993) | |
| 3680 | Omati | same | | | Franklin (1973) | |
| 14663 | Ömie | vahi-e | night | | Dutton (2010) | |
| 6005 | Onabasulu | nigiliba | | | Shaw (1973) | |
| 16110 | Onabasulu | nigili | | | Shaw (1986) | |
| 90754 | Ono | ruwo | night | | McElhanon (1967) | night |
| 4573 | Opao | eloa | | | Brown (1973) | |
| 52554 | Orokaiva | mume | night | | Smallhorn (2011) | |
| 52552 | Orokaiva (Dobuduru Dialect) | mume[de] | night | | Smallhorn (2011) | |
| 52551 | Orokaiva (Dobuduru Dialect) | mume | darkness | | Smallhorn (2011) | |
| 52553 | Orokaiva (Jegasa-Sarau Dialect) | mume | darkness | | Smallhorn (2011) | |
| 52555 | Orokaiva (Para Harava Dialect) | mume | night | | Smallhorn (2011) | |
| 52567 | Orokaiva (Sose Dialect) | hi | dark | | Smallhorn (2011) | |
| 52556 | Orokaiva (Sose Dialect) | mume | night, dark | | Smallhorn (2011) | |
