| 87869 | Mailu (Geagea Dialect) | nuda | | | Thomson (1975) | |
| 86499 | Mailu (Ilai Dialect) | nuda | | | Thomson (1975) | |
| 86773 | Mailu (Island Dialect) | nuda | | | Thomson (1975) | |
| 221321 | Maiwa | pʰu'aine | | | SIL (1973) | |
| 144644 | Mala | ododum | | | Z'graggen (1980) | wet |
| 144639 | Malas | bamun | | | Z'graggen (1980) | wet |
| 144638 | Malas | yaŋgun | | | Z'graggen (1980) | wet |
| 181701 | Male | yʌkogo | | | Z'graggen (1980) | wet |
| 233179 | Mali (Arambum Dialect) | iska | | | SIL (1985) | |
| 233300 | Mali (Makunga Dialect) | aⁱs | | | SIL (1985) | |
| 83424 | Manat | ßɨta | | | Daniels (2010) | |
| 259826 | Maria (Maiagolo Dialect) | ˈsouʔa | | | Dutton (1970) | wet |
| 259828 | Maria (Maranomu Dialect) | ˈtouˈni | | | Dutton (1970) | wet |
| 125858 | Matepi | lɛh | | | Z'graggen (1980) | wet |
| 144648 | Mauwake | supukʌ | | | Z'graggen (1980) | wet |
| 144653 | Mawak | popur̃ | | | Z'graggen (1980) | wet |
| 125856 | Mawan | lɛha | | | Z'graggen (1980) | wet |
| 77957 | Maybrat | -ka | | | Dol (2007) | |
| 77960 | Maybrat | -kum | | | Dol (2007) | |
| 77022 | Mbaniata | tumuva | wet | | Tryon & Hackman (1983) | |
| 76668 | Mbaniata (Lokuru Dialect) | tumuva | wet | | Tryon & Hackman (1983) | |
| 76531 | Mbilua | sitesite | wet | | Tryon & Hackman (1983) | |
| 76295 | Mbilua (Ndovele Dialect) | siusiu | wet | | Tryon & Hackman (1983) | |
| 144647 | Miani | buiri | | | Z'graggen (1980) | wet |
| 218365 | Migabac | misa gorec | | | SIL (1975) | |
| 181684 | Migum | minkyɛ | | | Z'graggen (1980) | wet |
| 144651 | Moere | kuŋuma | | | Z'graggen (1980) | wet |
| 193882 | Moresada | mtətə- | | | Z'graggen (1980) | wet |
| 125848 | Mosimo | žɛ ta | | | Z'graggen (1980) | wet |
| 259832 | Motu | paripari- | | | Dutton (1970) | wet |
| 193878 | Mum | kukukuku | | | Z'graggen (1980) | wet |
| 198622 | Mungkip | medāŋ | | | Retsema et al. (2009) | |
| 125834 | Munit | baguaru | | | Z'graggen (1980) | wet |
| 125845 | Murupi | ze tamɛu | | | Z'graggen (1980) | wet |
| 193888 | Musak | ampʉtu | | | Z'graggen (1980) | wet |
| 144655 | Musar | iːpas | | | Z'graggen (1980) | wet |
| 214119 | Nakai | ʔɔˈqɑβinɛsɛt | | | Hughes (2009) | |
| 199098 | Nakame (Dzenzen Dialect) | medɑŋ | | | Retsema et al. (2009) | |
| 199729 | Nakame (Gufin Dialect) | medɑni | | | Retsema et al. (2009) | |
| 199615 | Nakame (Munguleng Dialect) | medɑŋ | | | Retsema et al. (2009) | |
| 199225 | Nakame (Popof Dialect) | me·dɑni | | | Retsema et al. (2009) | |
| 198740 | Nakame (Sikalan Dialect) | mɛndaŋ | | | Retsema et al. (2009) | |
| 198861 | Nakame (Sokan Dialect) | mendaŋ | | | Retsema et al. (2009) | |
| 198979 | Nakame (Wasin Dialect) | medɑŋ | | | Retsema et al. (2009) | |
| 125847 | Nake | fau | | | Z'graggen (1980) | wet |
| 200194 | Nek (Goambot Dialect) | gɑutnin | | | Retsema et al. (2009) | |
| 83423 | Nend | (iaᵐbɨ)ta | | | Daniels (2010) | |
| 193885 | Nend | yamb | | | Z'graggen (1980) | wet |
| 125860 | Nobonob | kabkab | | | Z'graggen (1980) | wet |
| 199817 | Nuk (Tamben Dialect) | gɑwədɛ | | | Retsema et al. (2009) | |
