| 3376 | Mubami | amahe | | | Franklin (1973) | |
| 27444 | Mubami | amahɛ | | | Reesink (1976) | |
| 20294 | Mpur | bit | | | Voorhoeve (1975) | |
| 16809 | Mpur | bit | | | Miedema & Welling (1985) | |
| 34720 | Mpur (Kebar Dialect) | bit | | | Miedema & Welling (1985) | |
| 34680 | Mpur (Arfu Dialect) | bi:t | | | Miedema & Welling (1985) | |
| 15137 | Mountain Koiari | mune | stone | | Dutton (2010) | |
| 258183 | Motu | nadi | | | Dutton (1970) | stone |
| 34640 | Moskona (Merdey Dialect) | muosgoni | | | Miedema & Welling (1985) | |
| 19082 | Moskona | mamo | | | Voorhoeve (1975) | |
| 124172 | Mosimo | ki | | | Z'graggen (1980) | stone |
| 21492 | Morori | mere | | | Voorhoeve (1975) | |
| 3478 | Morigi | akapu | | | Wurm (1973) | |
| 193010 | Moresada | asʌsʌp | | | Z'graggen (1980) | stone |
| 32335 | Morawa | korao | | | SIL (1973) | |
| 25196 | Mor (Austronesian) | vaʔa | | | Voorhoeve (1975) | |
| 20174 | Moraid | amp | | | Voorhoeve (1975) | |
| 21813 | Mor | puata | | | Voorhoeve (1975) | |
| 6284 | Moni (Kemandoga Dialect) | homa | | | Larson & Larson (1972) | |
| 22374 | Moni | ŋeda | | | Voorhoeve (1975) | |
| 21532 | Momuna | kɨ | | | Voorhoeve (1975) | |
| 21138 | Mombum | mete | | | Voorhoeve (1975) | |
| 157467 | Momare | hoʔ | | | McElhanon and Voorhoeve (1970) | stone |
| 29609 | Molof | le | | | Voorhoeve (1971) | |
| 19648 | Molof | le | | | Voorhoeve (1975) | |
| 20133 | Moi | kwak | | | Voorhoeve (1975) | |
| 143156 | Moere | kawen | | | Z'graggen (1980) | stone |
| 25962 | Mlap | dəmu | | | Voorhoeve (1975) | |
| 244003 | Minidien | kitampa | | | Laycock (1968) | |
| 244004 | Minidien | alpɨl | | | Laycock (1968) | |
| 3059 | Minanibai | nadi | | | Franklin (1973) | |
| 180176 | Migum | naŋge | | | Z'graggen (1980) | stone |
| 157466 | Migabac | hoʔ | | | McElhanon and Voorhoeve (1970) | stone |
| 218235 | Migabac | posa | | | SIL (1975) | |
| 218245 | Migabac | qalac | | | SIL (1975) | |
| 143152 | Miani | nɔmo | | | Z'graggen (1980) | stone |
| 20374 | Meyah | mamu | | | Voorhoeve (1975) | |
| 34600 | Meyah (Mumbrani Dialect) | mami | | | Miedema & Welling (1985) | |
| 34559 | Meyah (Miun Dialect) | mekom | | | Miedema & Welling (1985) | |
| 34519 | Meyah (Etskebi Dialect) | mox(w)om | | | Miedema & Welling (1985) | |
| 34398 | Meyah (Anason Dialect) | maukom | | | Miedema & Welling (1985) | |
| 34358 | Meyah (Akrin Dialect) | mamu | | | Miedema & Welling (1985) | |
| 91288 | Mesem | nandza | stone | | McElhanon (1967) | stone |
| 4790 | Menya | hika | | | Lloyd (1973) | |
| 244025 | Mende | süŋkye | | | Laycock (1968) | |
| 262 | Mena | kamə | | | Franklin (1973) | |
| 25882 | Mekwei | dəmo | | | Voorhoeve (1975) | |
| 244016 | Mehek | arkwo | | | Laycock (1968) | |
| 76271 | Mbilua (Ndovele Dialect) | lando | stone | | Tryon & Hackman (1983) | |
| 76548 | Mbilua | lando | stone | | Tryon & Hackman (1983) | |
