| 88014 | Mailu (Delebai Dialect) | gomana | | | Thomson (1975) | |
| 87192 | Mailu (Domara Dialect) | korau | | | Thomson (1975) | |
| 87740 | Mailu (Geagea Dialect) | gomana | | | Thomson (1975) | |
| 86370 | Mailu (Ilai Dialect) | gomana | | | Thomson (1975) | |
| 86644 | Mailu (Island Dialect) | gomana | | | Thomson (1975) | |
| 21572 | Mairasi | javutu | | | Voorhoeve (1975) | |
| 217804 | Maiwa | agim | Daga - goat | | SIL (1967) | |
| 221207 | Maiwa | 'agim | | | SIL (1973) | |
| 36324 | Makasae | 'afa (O) here | | | Stokhof (1975) | |
| 21212 | Maklew | mate | | | Voorhoeve (1975) | |
| 143148 | Mala | munʌm | | | Z'graggen (1980) | stone |
| 143144 | Malas | ubom | | | Z'graggen (1980) | stone |
| 180195 | Male | meneŋ | | | Z'graggen (1980) | stone |
| 233114 | Mali (Arambum Dialect) | diǥa | | | SIL (1985) | |
| 233216 | Mali (Makunga Dialect) | dulki | | | SIL (1985) | |
| 157448 | Ma Manda | kaoda | | | McElhanon and Voorhoeve (1970) | stone |
| 22824 | Mander | bira | | | Voorhoeve (1975) | |
| 25562 | Mandobo Atas | iwan | | | Voorhoeve (1975) | |
| 19202 | Manem | suk | | | Voorhoeve (1975) | |
| 29526 | Manem | suk | | | Voorhoeve (1971) | |
| 20454 | Manikion | idahabu | | | Voorhoeve (1975) | |
| 91294 | Mape | kâk | stone | | McElhanon (1967) | stone |
| 157468 | Mape (Naga Dialect) | kɔʔ | | | McElhanon and Voorhoeve (1970) | stone |
| 24874 | Marau | kami | | | Voorhoeve (1975) | |
| 258175 | Maria (Maiagolo Dialect) | ˈaʔiga | | | Dutton (1970) | stone |
| 258177 | Maria (Maranomu Dialect) | ˈvaiga | | | Dutton (1970) | stone |
| 258179 | Maria (Uderi Dialect) | ˈbaga | | | Dutton (1970) | stone |
| 258181 | Maria | ˈaʔika | | | Dutton (1970) | stone |
| 22334 | Marind | ka:tar | | | Voorhoeve (1975) | |
| 21933 | Marind, Bian | seŋga | | | Voorhoeve (1975) | |
| 124181 | Matepi | i: | | | Z'graggen (1980) | stone |
| 143153 | Mauwake | mʌduŋ | | | Z'graggen (1980) | stone |
| 143154 | Mauwake | nomona | | | Z'graggen (1980) | stone |
| 143158 | Mawak | nome | | | Z'graggen (1980) | stone |
| 124179 | Mawan | i: | | | Z'graggen (1980) | stone |
| 25762 | Mawes | feyt | | | Voorhoeve (1975) | |
| 24206 | Ma'ya | kapat | | | Voorhoeve (1975) | |
| 77820 | Maybrat | fra | | | Dol (2007) | |
| 76950 | Mbaniata | vo | stone | | Tryon & Hackman (1983) | |
| 76951 | Mbaniata | heŋga | stone | | Tryon & Hackman (1983) | |
| 76820 | Mbaniata (Lokuru Dialect) | hɛŋga | stone | | Tryon & Hackman (1983) | |
| 76548 | Mbilua | lando | stone | | Tryon & Hackman (1983) | |
| 76271 | Mbilua (Ndovele Dialect) | lando | stone | | Tryon & Hackman (1983) | |
| 244016 | Mehek | arkwo | | | Laycock (1968) | |
| 25882 | Mekwei | dəmo | | | Voorhoeve (1975) | |
| 262 | Mena | kamə | | | Franklin (1973) | |
| 244025 | Mende | süŋkye | | | Laycock (1968) | |
| 4790 | Menya | hika | | | Lloyd (1973) | |
| 91288 | Mesem | nandza | stone | | McElhanon (1967) | stone |
| 34358 | Meyah (Akrin Dialect) | mamu | | | Miedema & Welling (1985) | |
