| 19196 | Manem | gueno | | | Voorhoeve (1975) | |
| 29533 | Manem | gueno | | | Voorhoeve (1971) | |
| 20448 | Manikion | hom | | | Voorhoeve (1975) | |
| 261008 | Mansim | woam | | | Fabritius (1855) | 1 |
| 90552 | Mape | mokotoŋ | one | | McElhanon (1967) | one |
| 236688 | Marangis | kaku | | | Foley (2005) | |
| 24868 | Marau | kosiri | | | Voorhoeve (1975) | |
| 260237 | Maria (Maiagolo Dialect) | ˈaefima | | | Dutton (1970) | one |
| 260239 | Maria (Maranomu Dialect) | yoʔohi | | | Dutton (1970) | one |
| 260241 | Maria (Uderi Dialect) | ˈaefoma | | | Dutton (1970) | one |
| 260243 | Maria | ˈaibuhi | | | Dutton (1970) | one |
| 22328 | Marind | iza:kod | | | Voorhoeve (1975) | |
| 21927 | Marind, Bian | iska | | | Voorhoeve (1975) | |
| 125013 | Matepi | olog | | | Z'graggen (1980) | one |
| 143879 | Mauwake | kusob | | | Z'graggen (1980) | (one) |
| 143883 | Mawak | katiga | | | Z'graggen (1980) | (one) |
| 125011 | Mawan | oripigʌːg | | | Z'graggen (1980) | one |
| 25756 | Mawes | mendakai | | | Voorhoeve (1975) | |
| 24200 | Ma'ya | sa | | | Voorhoeve (1975) | |
| 260803 | Ma'ya | sa | | | Fabritius (1855) | 1 |
| 24216 | Ma'ya | katim | | | Voorhoeve (1975) | |
| 77750 | Maybrat | s- | | | Dol (2007) | |
| 76892 | Mbaniata | thufi | one | | Tryon & Hackman (1983) | |
| 76891 | Mbaniata | aro[no] | one | | Tryon & Hackman (1983) | |
| 76793 | Mbaniata (Lokuru Dialect) | thufi | one | | Tryon & Hackman (1983) | |
| 76728 | Mbaniata (Lokuru Dialect) | āroŋo | one | | Tryon & Hackman (1983) | |
| 76480 | Mbilua | ɔmandeu | one | | Tryon & Hackman (1983) | |
| 76264 | Mbilua (Ndovele Dialect) | mandeu | one | | Tryon & Hackman (1983) | |
| 236687 | Mbore | kabe | | | Foley (2005) | |
| 25876 | Mekwei | kapray | | | Voorhoeve (1975) | |
| 315 | Mena | sʌkanɛ | | | Franklin (1973) | |
| 4843 | Menya | hɨnkwona | | | Lloyd (1973) | |
| 90546 | Mesem | kpedzi | one | | McElhanon (1967) | one |
| 34352 | Meyah (Akrin Dialect) | èrgèns | | | Miedema & Welling (1985) | |
| 34392 | Meyah (Anason Dialect) | arfins | | | Miedema & Welling (1985) | |
| 34513 | Meyah (Etskebi Dialect) | èrgèns | | | Miedema & Welling (1985) | |
| 34553 | Meyah (Miun Dialect) | afims | | | Miedema & Welling (1985) | |
| 34593 | Meyah (Mumbrani Dialect) | èrgèns | | | Miedema & Welling (1985) | |
| 20368 | Meyah | ergens | | | Voorhoeve (1975) | |
| 143878 | Miani | udua | | | Z'graggen (1980) | (one) |
| 218264 | Migabac | monɩaŋkuc | | | SIL (1975) | |
| 180914 | Migum | dʌima | | | Z'graggen (1980) | one |
| 3112 | Minanibai | raiegio | | | Franklin (1973) | |
| 25956 | Mlap | tendu | | | Voorhoeve (1975) | |
| 143881 | Moere | ŋkonmaŋɛm | | | Z'graggen (1980) | (one) |
| 20127 | Moi | mele | | | Voorhoeve (1975) | |
| 260851 | Moi | mélé | | | Fabritius (1855) | 1 |
| 19642 | Molof | kwasekak | | | Voorhoeve (1975) | |
| 29619 | Molof | kwasekak | | | Voorhoeve (1971) | |
| 21132 | Mombum | te | | | Voorhoeve (1975) | |
