| 17291 | Northeast Kiwai (Arigibi Dialect) | 'ɛ́io | | | Wurm (1973) | |
| 155630 | Nomu | pouŋe | | | McElhanon and Voorhoeve (1970) | new |
| 125676 | Nobonob | bau | | | Z'graggen (1980) | new |
| 198236 | Nimo | tamʌ | | | Conrad and Dye (1975) | |
| 155619 | Nimi | kayak | | | McElhanon and Voorhoeve (1970) | new |
| 155591 | Ngaing | gɛmʌŋ | | | McElhanon and Voorhoeve (1970) | new |
| 193788 | Nend | ica | | | Z'graggen (1980) | new |
| 155592 | Nekgini | kɛŋ | | | McElhanon and Voorhoeve (1970) | new |
| 200191 | Nek (Goambot Dialect) | kombɨɾin | | | Retsema et al. (2009) | |
| 155623 | Nek | kaek | | | McElhanon and Voorhoeve (1970) | new |
| 38831 | Nedebang | saf'aʔa | | | Stokhof (1975) | |
| 155609 | Nankina | kwondʌk | | | McElhanon and Voorhoeve (1970) | new |
| 125661 | Nake | yara | | | Z'graggen (1980) | new |
| 125662 | Nake | auwe | | | Z'graggen (1980) | new |
| 198976 | Nakame (Wasin Dialect) | kobli | | | Retsema et al. (2009) | |
| 198858 | Nakame (Sokan Dialect) | qaipm̩ | | | Retsema et al. (2009) | |
| 198737 | Nakame (Sikalan Dialect) | kaipm | | | Retsema et al. (2009) | |
| 199222 | Nakame (Popof Dialect) | qobuli | | | Retsema et al. (2009) | |
| 199612 | Nakame (Munguleng Dialect) | hubuɾi | | | Retsema et al. (2009) | |
| 199611 | Nakame (Munguleng Dialect) | qɑipmūŋ | | | Retsema et al. (2009) | |
| 199727 | Nakame (Gufin Dialect) | kubuli | | | Retsema et al. (2009) | |
| 199095 | Nakame (Dzenzen Dialect) | qɑipm̩ | | | Retsema et al. (2009) | |
| 155622 | Nakame | kaipm | | | McElhanon and Voorhoeve (1970) | new |
| 214110 | Nakai | ˈʔɑːbim | | | Hughes (2009) | |
| 197800 | Nagatiman | tihųʔ | | | Conrad and Dye (1975) | |
| 91131 | Nabak | arakŋəŋ | new | | McElhanon (1967) | new |
| 155641 | Nabak | arak | | | McElhanon and Voorhoeve (1970) | new |
| 155568 | Muyu, South | kiri | | | McElhanon and Voorhoeve (1970) | new |
| 155567 | Muyu, North | kuri | | | McElhanon and Voorhoeve (1970) | new |
| 144475 | Musar | noːmu | | | Z'graggen (1980) | (new) |
| 193790 | Musak | kikɨ | | | Z'graggen (1980) | new |
| 125658 | Murupi | ofua | | | Z'graggen (1980) | new |
| 240619 | Murik (Karau Dialect) | ˈnəŋgəmoŋgo | | | Abbott (1985) | |
| 155588 | Muratayak | ʌndʌgum | | | McElhanon and Voorhoeve (1970) | new |
| 125644 | Munit | eraʔ | | | Z'graggen (1980) | new |
| 155625 | Mungkip | kubuli | | | McElhanon and Voorhoeve (1970) | new |
| 198619 | Mungkip | kʰubri | | | Retsema et al. (2009) | |
| 82988 | Mum | kɨɣi | | | Daniels (2010) | |
| 193781 | Mum | kʉgi | | | Z'graggen (1980) | new |
| 27478 | Mubami | giala | | | Reesink (1976) | |
| 15462 | Mountain Koiari | isahete | green wood, young person | | Dutton (2010) | |
| 259110 | Motu | matamata | | | Dutton (1970) | new (house) |
| 125663 | Mosimo | kauta | | | Z'graggen (1980) | new |
| 3506 | Morigi | olio | | | Wurm (1973) | |
| 193785 | Moresada | usu- | | | Z'graggen (1980) | new |
| 155645 | Momare | gberiʔ | | | McElhanon and Voorhoeve (1970) | new |
| 29592 | Molof | rof | | | Voorhoeve (1971) | |
| 144471 | Moere | yɛmp | | | Z'graggen (1980) | (new) |
| 3087 | Minanibai | darimokasie | | | Franklin (1973) | |
| 181529 | Migum | juŋ | | | Z'graggen (1980) | new |
