| 25765 | Mawes | wan | | | Voorhoeve (1975) | |
| 120489 | Mawan | a: | | | Z'graggen (1980) | tooth |
| 139819 | Mawak | nʌŋgʌpʰʌ | | | Z'graggen (1980) | tooth |
| 139815 | Mauwake | eneka | | | Z'graggen (1980) | tooth |
| 120491 | Matepi | au- | | | Z'graggen (1980) | tooth |
| 21936 | Marind, Bian | geigae | | | Voorhoeve (1975) | |
| 157329 | Marind (Gawir Dialect) | maŋgat | | | McElhanon and Voorhoeve (1970) | tooth |
| 22337 | Marind | maŋgat | | | Voorhoeve (1975) | |
| 257603 | Maria | ˈgate | | | Dutton (1970) | tooth |
| 257601 | Maria (Uderi Dialect) | ˈnio | | | Dutton (1970) | tooth |
| 257599 | Maria (Maranomu Dialect) | ˈgade | | | Dutton (1970) | tooth |
| 257597 | Maria (Maiagolo Dialect) | ˈnio | | | Dutton (1970) | tooth |
| 236766 | Marangis | ndakai | | | Foley (2005) | |
| 157395 | Mape (West Dialect) | miʔ | | | McElhanon and Voorhoeve (1970) | tooth |
| 157394 | Mape (Naga Dialect) | miʔ | | | McElhanon and Voorhoeve (1970) | tooth |
| 157396 | Mape (East Dialect) | miʔ | | | McElhanon and Voorhoeve (1970) | tooth |
| 91532 | Mape | misiâ- | (its) tooth | | McElhanon (1967) | (its) tooth |
| 20457 | Manikion | mokta | | | Voorhoeve (1975) | |
| 261206 | Manep | nanaŋ | | | Pick (2019) | tooth |
| 19205 | Manem | so | | | Voorhoeve (1975) | |
| 29530 | Manem | so | | | Voorhoeve (1971) | |
| 25565 | Mandobo Atas | imban | | | Voorhoeve (1975) | |
| 157308 | Mandobo Atas | imban | | | McElhanon and Voorhoeve (1970) | tooth |
| 22827 | Mander | kur | | | Voorhoeve (1975) | |
| 237380 | Manambu | ɨwk | | | Foley (2005) | |
| 157365 | Ma Manda | me | | | McElhanon and Voorhoeve (1970) | tooth |
| 157360 | Mamaa | mi | | | McElhanon and Voorhoeve (1970) | tooth |
| 233224 | Mali (Makunga Dialect) | alkɛŋ | | | SIL (1985) | |
| 233122 | Mali (Arambum Dialect) | ǥɛŋ | | | SIL (1985) | |
| 176826 | Male | kalagi | | | Z'graggen (1980) | tooth |
| 139807 | Malas | nanaŋ | | | Z'graggen (1980) | tooth |
| 139811 | Mala | -nanʌk | | | Z'graggen (1980) | tooth |
| 21215 | Maklew | köl | | | Voorhoeve (1975) | |
| 36287 | Makasae | w'asi (O) wain | | | Stokhof (1975) | |
| 221215 | Maiwa | do'nawa | | | SIL (1973) | |
| 217812 | Maiwa | donáwa | Daga - donewa | | SIL (1967) | |
| 21575 | Mairasi | nerasi | | | Voorhoeve (1975) | |
| 86598 | Mailu (Island Dialect) | maʔa | | | Thomson (1975) | |
| 86324 | Mailu (Ilai Dialect) | maʔa | | | Thomson (1975) | |
| 87694 | Mailu (Geagea Dialect) | maʔa | | | Thomson (1975) | |
| 87146 | Mailu (Domara Dialect) | maʔa | | | Thomson (1975) | |
| 87968 | Mailu (Delebai Dialect) | maʔa | | | Thomson (1975) | |
| 88242 | Mailu (Darava Dialect) | maʔa | | | Thomson (1975) | |
| 86872 | Mailu (Borebo Dialect) | maʔa | | | Thomson (1975) | |
| 87420 | Mailu (Baibara Dialect) | maʔa | | | Thomson (1975) | |
| 86050 | Mailu (Asiaoro Dialect) | maʔa | | | Thomson (1975) | |
| 75276 | Mailu | maa | | | Saville (1912) | |
| 75277 | Mailu | gagina | | | Saville (1912) | |
| 20257 | Mai Brat | bait | | | Voorhoeve (1975) | |
| 139813 | Maia (Saki Dialect) | -nanaŋ | | | Z'graggen (1980) | tooth |
