| 24968 | Munggui | andova | | | Voorhoeve (1975) | |
| 191746 | Mum | kaβa | | | Z'graggen (1980) | bird |
| 82926 | Mum | kaßa | | | Daniels (2010) | |
| 258640 | Mulaha | iguvi | | | Dutton (1970) | bird |
| 3388 | Mubami | eveha | | | Franklin (1973) | |
| 27462 | Mubami | eweha | | | Reesink (1976) | |
| 16781 | Mpur | iuw | | | Miedema & Welling (1985) | |
| 20266 | Mpur | iu | | | Voorhoeve (1975) | |
| 34692 | Mpur (Kebar Dialect) | if | | | Miedema & Welling (1985) | |
| 34652 | Mpur (Arfu Dialect) | iw (ip) | | | Miedema & Welling (1985) | |
| 15326 | Mountain Koiari | ugu | bird | | Dutton (2010) | |
| 258639 | Motu | hui- | | | Dutton (1970) | bird |
| 34612 | Moskona (Merdey Dialect) | mèm | | | Miedema & Welling (1985) | |
| 19056 | Moskona | mem | | | Voorhoeve (1975) | |
| 121723 | Mosimo | a:y | | | Z'graggen (1980) | bird |
| 21464 | Morori | ujif | | | Voorhoeve (1975) | |
| 3490 | Morigi | wowogo | | | Wurm (1973) | |
| 191750 | Moresada | ŋgʌr̃ʌp | | | Z'graggen (1980) | bird |
| 32327 | Morawa | adau | | | SIL (1973) | |
| 25168 | Mor (Austronesian) | manu | | | Voorhoeve (1975) | |
| 20146 | Moraid | kele | | | Voorhoeve (1975) | |
| 21785 | Mor | isa | | | Voorhoeve (1975) | |
| 7292 | Moni (Kemandoga Dialect) | beka | | | Larson & Larson (1972) | |
| 22346 | Moni | bega | | | Voorhoeve (1975) | |
| 21110 | Mombum | konji | | | Voorhoeve (1975) | |
| 157432 | Momare | naŋo | | | McElhanon and Voorhoeve (1970) | bird |
| 29552 | Molof | au | | | Voorhoeve (1971) | |
| 19620 | Molof | au | | | Voorhoeve (1975) | |
| 20105 | Moi | kelem | | | Voorhoeve (1975) | |
| 140950 | Moere | nempe | | | Z'graggen (1980) | (bird) |
| 25934 | Mlap | iü | | | Voorhoeve (1975) | |
| 244253 | Minidien | pelhin | | | Laycock (1968) | |
| 3071 | Minanibai | eƀeso | | | Franklin (1973) | |
| 177949 | Migum | yen | | | Z'graggen (1980) | bird |
| 218227 | Migabac | naŋo | | | SIL (1975) | |
| 157431 | Migabac | naŋo | | | McElhanon and Voorhoeve (1970) | bird |
| 140947 | Miani | muga | | | Z'graggen (1980) | (bird) |
| 20346 | Meyah | mem | | | Voorhoeve (1975) | |
| 34571 | Meyah (Mumbrani Dialect) | mèm | | | Miedema & Welling (1985) | |
| 34531 | Meyah (Miun Dialect) | mèm | | | Miedema & Welling (1985) | |
| 34491 | Meyah (Etskebi Dialect) | mèm | | | Miedema & Welling (1985) | |
| 34370 | Meyah (Anason Dialect) | me:m | | | Miedema & Welling (1985) | |
| 34330 | Meyah (Akrin Dialect) | mèm | | | Miedema & Welling (1985) | |
| 91442 | Mesem | lau | bird | | McElhanon (1967) | bird |
| 4802 | Menya | yinga | | | Lloyd (1973) | |
| 244274 | Mende | afi | | | Laycock (1968) | |
| 274 | Mena | kaiɛ | | | Franklin (1973) | |
| 25854 | Mekwei | ü | | | Voorhoeve (1975) | |
| 244265 | Mehek | fenre | | | Laycock (1968) | |
| 76399 | Mbilua (Ndovele Dialect) | mbiaŋambiaŋa | bird | | Tryon & Hackman (1983) | |
