| 76493 | Mbilua | mbiaŋa | bird | | Tryon & Hackman (1983) | |
| 76756 | Mbaniata (Lokuru Dialect) | mānozo | bird | | Tryon & Hackman (1983) | |
| 77044 | Mbaniata | arove manozo | bird | | Tryon & Hackman (1983) | |
| 77757 | Maybrat | ru | | | Dol (2007) | |
| 25734 | Mawes | ikinin | | | Voorhoeve (1975) | |
| 121730 | Mawan | a:r | | | Z'graggen (1980) | bird |
| 140952 | Mawak | muŋgʌ | | | Z'graggen (1980) | (bird) |
| 140948 | Mauwake | nepa | | | Z'graggen (1980) | (bird) |
| 121732 | Matepi | al | | | Z'graggen (1980) | bird |
| 21905 | Marind, Bian | uzub | | | Voorhoeve (1975) | |
| 22306 | Marind | uzub | | | Voorhoeve (1975) | |
| 258637 | Maria | eˈrena | | | Dutton (1970) | bird |
| 258635 | Maria (Uderi Dialect) | eˈrena | | | Dutton (1970) | bird |
| 258633 | Maria (Maranomu Dialect) | eˈrena | | | Dutton (1970) | bird |
| 258631 | Maria (Maiagolo Dialect) | eˈrena | | | Dutton (1970) | bird |
| 24846 | Marau | andova | | | Voorhoeve (1975) | |
| 157434 | Mape (Naga Dialect) | noŋɔ | | | McElhanon and Voorhoeve (1970) | bird |
| 91448 | Mape | wârâ | bird | | McElhanon (1967) | bird |
| 20426 | Manikion | ba | | | Voorhoeve (1975) | |
| 261196 | Manep | nambe | | | Pick (2019) | bird |
| 19174 | Manem | yor | | | Voorhoeve (1975) | |
| 19212 | Manem | yoŋ | | | Voorhoeve (1975) | |
| 29464 | Manem | joŋ jor | | | Voorhoeve (1971) | |
| 201406 | Mandobo Atas (Yonggom Dialect) | yet | | | Voorhoeve (2000) | |
| 231635 | Mandobo Atas (Kwem Dialect) | et | | | Healey (1970) | |
| 25534 | Mandobo Atas | et | | | Voorhoeve (1975) | |
| 231451 | Mandobo Atas | et | | | Healey (1970) | |
| 201317 | Mandobo Atas | et | | | Voorhoeve (2000) | |
| 22796 | Mander | ju | | | Voorhoeve (1975) | |
| 233210 | Mali (Makunga Dialect) | isᶺmka | | | SIL (1985) | |
| 233108 | Mali (Arambum Dialect) | i sʌmga | | | SIL (1985) | |
| 177968 | Male | as | | | Z'graggen (1980) | bird |
| 140939 | Malas | nambe | | | Z'graggen (1980) | (bird) |
| 140944 | Mala | muka | | | Z'graggen (1980) | (bird) |
| 21184 | Maklew | aebola | | | Voorhoeve (1975) | |
| 36316 | Makasae | 'asa (O) (oto)asa | | | Stokhof (1975) | |
| 217796 | Maiwa | nenip | Daga - nenip | | SIL (1967) | |
| 221199 | Maiwa | ve'kʰætʰu | | | SIL (1973) | |
| 21544 | Mairasi | sai | | | Voorhoeve (1975) | |
| 86674 | Mailu (Island Dialect) | manu | | | Thomson (1975) | |
| 86400 | Mailu (Ilai Dialect) | manu | | | Thomson (1975) | |
| 87770 | Mailu (Geagea Dialect) | manu | | | Thomson (1975) | |
| 87222 | Mailu (Domara Dialect) | manu | | | Thomson (1975) | |
| 88044 | Mailu (Delebai Dialect) | manu | | | Thomson (1975) | |
| 88318 | Mailu (Darava Dialect) | manu | | | Thomson (1975) | |
| 86948 | Mailu (Borebo Dialect) | manu | | | Thomson (1975) | |
| 87496 | Mailu (Baibara Dialect) | manu | | | Thomson (1975) | |
| 86126 | Mailu (Asiaoro Dialect) | manu | | | Thomson (1975) | |
| 75128 | Mailu | manu | | | Saville (1912) | |
| 20226 | Mai Brat | ru | | | Voorhoeve (1975) | |
