| 91218 | Mesem | tu | water | | McElhanon (1967) | water |
| 4788 | Menya | eqa | | | Lloyd (1973) | |
| 243942 | Mende | uku | | | Laycock (1968) | |
| 260 | Mena | mu | | | Franklin (1973) | |
| 25888 | Mekwei | bu | | | Voorhoeve (1975) | |
| 243933 | Mehek | okwu | | | Laycock (1968) | |
| 236719 | Mbore | puk | | | Foley (2005) | |
| 76273 | Mbilua (Ndovele Dialect) | nĵu | water | | Tryon & Hackman (1983) | |
| 76568 | Mbilua | nĵu | water | | Tryon & Hackman (1983) | |
| 76814 | Mbaniata (Lokuru Dialect) | fiɔ | water | | Tryon & Hackman (1983) | |
| 76944 | Mbaniata | fiō | water | | Tryon & Hackman (1983) | |
| 77818 | Maybrat | aya | | | Dol (2007) | |
| 24212 | Ma'ya | waya | | | Voorhoeve (1975) | |
| 25768 | Mawes | bo | | | Voorhoeve (1975) | |
| 124346 | Mawan | re | | | Z'graggen (1980) | water |
| 143302 | Mawak | opɛt | | | Z'graggen (1980) | (water) |
| 143298 | Mauwake | ekʌ | | | Z'graggen (1980) | (water) |
| 124348 | Matepi | le | | | Z'graggen (1980) | water |
| 21939 | Marind, Bian | ada:ka | | | Voorhoeve (1975) | |
| 158478 | Marind (Gawir Dialect) | adika | | | McElhanon and Voorhoeve (1970) | water |
| 22340 | Marind | adika | | | Voorhoeve (1975) | |
| 258134 | Maria | ˈʔoru | | | Dutton (1970) | water |
| 258132 | Maria (Uderi Dialect) | ˈoru | | | Dutton (1970) | water |
| 258130 | Maria (Maranomu Dialect) | ˈʔoru | | | Dutton (1970) | water |
| 258128 | Maria (Maiagolo Dialect) | ˈoru | | | Dutton (1970) | water |
| 24880 | Marau | mare | | | Voorhoeve (1975) | |
| 236720 | Marangis | arum | | | Foley (2005) | |
| 158547 | Mape (West Dialect) | obu | | | McElhanon and Voorhoeve (1970) | water |
| 158546 | Mape (Naga Dialect) | obo | | | McElhanon and Voorhoeve (1970) | water |
| 158548 | Mape (East Dialect) | obu | | | McElhanon and Voorhoeve (1970) | water |
| 91224 | Mape | owu | water | | McElhanon (1967) | water |
| 20460 | Manikion | tohu | | | Voorhoeve (1975) | |
| 261253 | Manep | yaŋgu | | | Pick (2019) | water |
| 29535 | Manem | pu | | | Voorhoeve (1971) | |
| 19208 | Manem | pu | | | Voorhoeve (1975) | |
| 201482 | Mandobo Atas (Yonggom Dialect) | ok | | | Voorhoeve (2000) | |
| 231559 | Mandobo Atas (Kwem Dialect) | ok | | | Healey (1970) | |
| 158452 | Mandobo Atas | ok | | | McElhanon and Voorhoeve (1970) | water |
| 201400 | Mandobo Atas | ok | | | Voorhoeve (2000) | |
| 231376 | Mandobo Atas | ok | | | Healey (1970) | |
| 25568 | Mandobo Atas | ok | | | Voorhoeve (1975) | |
| 22830 | Mander | fo | | | Voorhoeve (1975) | |
| 237331 | Manambu | ŋkɨw | | | Foley (2005) | |
| 158516 | Ma Manda | mii | | | McElhanon and Voorhoeve (1970) | water |
| 158511 | Mamaa | inom | | | McElhanon and Voorhoeve (1970) | water |
| 233231 | Mali (Makunga Dialect) | ařɛŋki | | | SIL (1985) | |
| 233128 | Mali (Arambum Dialect) | řiŋgi | | | SIL (1985) | |
| 180345 | Male | yʌk | | | Z'graggen (1980) | water |
| 143290 | Malas | yaŋgu | | | Z'graggen (1980) | (water) |
| 143294 | Mala | ʌk | | | Z'graggen (1980) | (water) |
