| 159972 | Mesem | tã | | | McElhanon and Voorhoeve (1970) | dog |
| 91428 | Mesem | tą | dog | | McElhanon (1967) | dog |
| 4800 | Menya | hivyeqa | | | Lloyd (1973) | |
| 244232 | Mende | asa | | | Laycock (1968) | |
| 272 | Mena | kasə | | | Franklin (1973) | |
| 25859 | Mekwei | ando | | | Voorhoeve (1975) | |
| 244223 | Mehek | wala | | | Laycock (1968) | |
| 76400 | Mbilua (Ndovele Dialect) | siele | dog | | Tryon & Hackman (1983) | |
| 76492 | Mbilua | siele | dog | | Tryon & Hackman (1983) | |
| 76757 | Mbaniata (Lokuru Dialect) | sie | dog | | Tryon & Hackman (1983) | |
| 77043 | Mbaniata | sie | dog | | Tryon & Hackman (1983) | |
| 77762 | Maybrat | mtah | | | Dol (2007) | |
| 25739 | Mawes | wede | | | Voorhoeve (1975) | |
| 121980 | Mawan | kwʌːr | | | Z'graggen (1980) | dog |
| 141155 | Mawak | eman | | | Z'graggen (1980) | dog |
| 141151 | Mauwake | siowa | | | Z'graggen (1980) | dog |
| 121982 | Matepi | pʌːl | | | Z'graggen (1980) | dog |
| 21910 | Marind, Bian | ŋgat | | | Voorhoeve (1975) | |
| 159909 | Marind (Gawir Dialect) | ŋgat | | | McElhanon and Voorhoeve (1970) | dog |
| 22311 | Marind | ŋgat | | | Voorhoeve (1975) | |
| 258586 | Maria | ˈauna | | | Dutton (1970) | dog |
| 258584 | Maria (Uderi Dialect) | ˈauna | | | Dutton (1970) | dog |
| 258582 | Maria (Maranomu Dialect) | ˈauna | | | Dutton (1970) | dog |
| 258580 | Maria (Maiagolo Dialect) | ˈauna | | | Dutton (1970) | dog |
| 159981 | Mape (West Dialect) | kporo | | | McElhanon and Voorhoeve (1970) | dog |
| 159980 | Mape (Naga Dialect) | kpɔrɔ | | | McElhanon and Voorhoeve (1970) | dog |
| 159982 | Mape (East Dialect) | kpodo | | | McElhanon and Voorhoeve (1970) | dog |
| 91434 | Mape | kporo | dog | | McElhanon (1967) | dog |
| 20431 | Manikion | mehi | | | Voorhoeve (1975) | |
| 201425 | Mandobo Atas (Yonggom Dialect) | ɑgɑi | | | Voorhoeve (2000) | |
| 231457 | Mandobo Atas (Kwem Dialect) | aga | | | Healey (1970) | |
| 201337 | Mandobo Atas | ɑgɑ | | | Voorhoeve (2000) | |
| 159887 | Mandobo Atas | aŋga | | | McElhanon and Voorhoeve (1970) | dog |
| 25539 | Mandobo Atas | aŋga | | | Voorhoeve (1975) | |
| 231272 | Mandobo Atas | aga | | | Healey (1970) | |
| 237445 | Manambu | ac | | | Foley (2005) | |
| 159951 | Ma Manda | sap | | | McElhanon and Voorhoeve (1970) | dog |
| 159952 | Ma Manda | kamo | | | McElhanon and Voorhoeve (1970) | dog |
| 159946 | Mamaa | kʌmoe | | | McElhanon and Voorhoeve (1970) | dog |
| 233211 | Mali (Makunga Dialect) | paimka | | | SIL (1985) | |
| 233109 | Mali (Arambum Dialect) | imga | | | SIL (1985) | |
| 178175 | Male | saŋ | | | Z'graggen (1980) | dog |
| 141143 | Malas | kakas | | | Z'graggen (1980) | dog |
| 141147 | Mala | ke | | | Z'graggen (1980) | dog |
| 21189 | Maklew | ŋgat | | | Voorhoeve (1975) | |
| 36354 | Makasae | d'ɛfa (O) ihar(a) | | | Stokhof (1975) | |
| 217797 | Maiwa | kueyao | Daga - eiao | | SIL (1967) | |
| 221200 | Maiwa | kʷʰe'.aᵘ | | | SIL (1973) | |
| 21549 | Mairasi | asi | | | Voorhoeve (1975) | |
| 86670 | Mailu (Island Dialect) | waʔai | | | Thomson (1975) | |
