| 76272 | Mbilua (Ndovele Dialect) | karokoni | sand | | Tryon & Hackman (1983) | |
| 76549 | Mbilua | karokoni | sand | | Tryon & Hackman (1983) | |
| 76821 | Mbaniata (Lokuru Dialect) | ōne | sand | | Tryon & Hackman (1983) | |
| 76945 | Mbaniata | ōne | sand | | Tryon & Hackman (1983) | |
| 77819 | Maybrat | snok | | | Dol (2007) | |
| 124017 | Mawan | giri | | | Z'graggen (1980) | sand |
| 143022 | Mawak | sereb | | | Z'graggen (1980) | sand |
| 143018 | Mauwake | sʌ: | | | Z'graggen (1980) | sand |
| 124019 | Matepi | ma:l | | | Z'graggen (1980) | sand |
| 155178 | Marind (Gawir Dialect) | sa: | | | McElhanon and Voorhoeve (1970) | sand |
| 258194 | Maria | kiˈbuti | | | Dutton (1970) | sand |
| 258192 | Maria (Uderi Dialect) | kiˈbudi | | | Dutton (1970) | sand |
| 258190 | Maria (Maranomu Dialect) | kiˈbidi | | | Dutton (1970) | sand |
| 258188 | Maria (Maiagolo Dialect) | kiˈbudi | | | Dutton (1970) | sand |
| 155245 | Mape (West Dialect) | mageŋ | | | McElhanon and Voorhoeve (1970) | sand |
| 155244 | Mape (Naga Dialect) | mageŋ | | | McElhanon and Voorhoeve (1970) | sand |
| 155246 | Mape (East Dialect) | mageŋ | | | McElhanon and Voorhoeve (1970) | sand |
| 91280 | Mape | mageŋ | sand | | McElhanon (1967) | sand |
| 29516 | Manem | pefjis | | | Voorhoeve (1971) | |
| 155158 | Mandobo Atas | ŋgirim | | | McElhanon and Voorhoeve (1970) | sand |
| 155216 | Ma Manda | kɨnkɨn namuk | | | McElhanon and Voorhoeve (1970) | sand |
| 155211 | Mamaa | yuf | | | McElhanon and Voorhoeve (1970) | sand |
| 233274 | Mali (Makunga Dialect) | aƀunki | | | SIL (1985) | |
| 233151 | Mali (Arambum Dialect) | ǥungi | | | SIL (1985) | |
| 180056 | Male | ulel | | | Z'graggen (1980) | sand |
| 143009 | Malas | silep | | | Z'graggen (1980) | sand |
| 143014 | Mala | koŋor | | | Z'graggen (1980) | sand |
| 36375 | Makasae | dana'kini | | | Stokhof (1975) | |
| 221284 | Maiwa | 'nuge | | | SIL (1973) | |
| 86645 | Mailu (Island Dialect) | ʔone | | | Thomson (1975) | |
| 86371 | Mailu (Ilai Dialect) | ʔaneʔa | | | Thomson (1975) | |
| 87741 | Mailu (Geagea Dialect) | ʔone | | | Thomson (1975) | |
| 87193 | Mailu (Domara Dialect) | ʔone | | | Thomson (1975) | |
| 88015 | Mailu (Delebai Dialect) | ʔone | | | Thomson (1975) | |
| 88289 | Mailu (Darava Dialect) | ʔone | | | Thomson (1975) | |
| 86919 | Mailu (Borebo Dialect) | ʔone | | | Thomson (1975) | |
| 87467 | Mailu (Baibara Dialect) | ʔone | | | Thomson (1975) | |
| 86097 | Mailu (Asiaoro Dialect) | ʔone | | | Thomson (1975) | |
| 75131 | Mailu | one | | | Saville (1912) | |
| 143016 | Maia (Saki Dialect) | sorob | | | Z'graggen (1980) | sand |
| 143015 | Maia (Pila Dialect) | solob | | | Z'graggen (1980) | sand |
| 257087 | Magɨ | misab | | | Daniels (2016) | |
| 155184 | Madi | namu | | | McElhanon and Voorhoeve (1970) | sand |
| 180038 | Lemio | siriri | | | Z'graggen (1980) | sand |
| 76174 | Lavukaleve | aor | sand | | Tryon & Hackman (1983) | |
| 155198 | Kutong (Sakam Dialect) | morʌk | | | McElhanon and Voorhoeve (1970) | sand |
| 165867 | Kuot | ubiem | | | Lindström (2008) | |
| 155179 | Kuni-Boazi (Boazi Dialect) | ⁿdivind | | | McElhanon and Voorhoeve (1970) | sand |
| 28654 | Kuni-Boazi | ndivind | | | Voorhoeve (1970) | |
| 155227 | Kumukio | nupi | | | McElhanon and Voorhoeve (1970) | sand |
