| 233137 | Mali (Arambum Dialect) | it | | | SIL (1985) | |
| 233241 | Mali (Makunga Dialect) | tʌƀᵊřʌk | | | SIL (1985) | |
| 158821 | Mamaa | yim | | | McElhanon and Voorhoeve (1970) | louse |
| 158826 | Ma Manda | sɔgumeŋ | | | McElhanon and Voorhoeve (1970) | louse |
| 237464 | Manambu | təkɨyn | | | Foley (2005) | |
| 22814 | Mander | nane | | | Voorhoeve (1975) | |
| 25552 | Mandobo Atas | ŋgut | | | Voorhoeve (1975) | |
| 201368 | Mandobo Atas | gut | | | Voorhoeve (2000) | |
| 231310 | Mandobo Atas | gut | | | Healey (1970) | |
| 158767 | Mandobo Atas | ŋgut | | | McElhanon and Voorhoeve (1970) | louse |
| 231494 | Mandobo Atas (Kwem Dialect) | gut | | | Healey (1970) | |
| 201451 | Mandobo Atas (Yonggom Dialect) | gut | | | Voorhoeve (2000) | |
| 261191 | Manep | gunu | | | Pick (2019) | louse |
| 20444 | Manikion | kuta | | | Voorhoeve (1975) | |
| 91420 | Mape | imeŋ | louse | | McElhanon (1967) | louse |
| 158856 | Mape (East Dialect) | imaŋ | | | McElhanon and Voorhoeve (1970) | louse |
| 158854 | Mape (Naga Dialect) | yɔmɛŋ | | | McElhanon and Voorhoeve (1970) | louse |
| 158855 | Mape (West Dialect) | imaŋ | | | McElhanon and Voorhoeve (1970) | louse |
| 24864 | Marau | utu | | | Voorhoeve (1975) | |
| 260129 | Maria (Maiagolo Dialect) | ˈkue | | | Dutton (1970) | louse |
| 260131 | Maria (Maranomu Dialect) | ˈgue | | | Dutton (1970) | louse |
| 22324 | Marind | mbab | | | Voorhoeve (1975) | |
| 158787 | Marind (Gawir Dialect) | mbamb | | | McElhanon and Voorhoeve (1970) | louse |
| 21923 | Marind, Bian | nhun | | | Voorhoeve (1975) | |
| 122196 | Matepi | mi | | | Z'graggen (1980) | louse |
| 141345 | Mauwake | kua | | | Z'graggen (1980) | louse |
| 141349 | Mawak | nandi | | | Z'graggen (1980) | louse |
| 122194 | Mawan | mi | | | Z'graggen (1980) | louse |
| 77791 | Maybrat | sruom | | | Dol (2007) | |
| 77087 | Mbaniata | vutu | louse | | Tryon & Hackman (1983) | |
| 76889 | Mbaniata | risa | louse egg | | Tryon & Hackman (1983) | |
| 77088 | Mbaniata | ɣutu | louse | | Tryon & Hackman (1983) | |
| 76769 | Mbaniata (Lokuru Dialect) | vutu | louse | | Tryon & Hackman (1983) | |
| 76768 | Mbaniata (Lokuru Dialect) | lisa | louse egg | | Tryon & Hackman (1983) | |
| 76510 | Mbilua | tiŋgau | louse egg | | Tryon & Hackman (1983) | |
| 76511 | Mbilua | sipi | louse | | Tryon & Hackman (1983) | |
| 76314 | Mbilua (Ndovele Dialect) | tiŋgau | louse egg | | Tryon & Hackman (1983) | |
| 76393 | Mbilua (Ndovele Dialect) | sipi | louse | | Tryon & Hackman (1983) | |
| 244345 | Mehek | nunum | | | Laycock (1968) | |
| 25872 | Mekwei | səne | | | Voorhoeve (1975) | |
| 311 | Mena | kuromiə | | | Franklin (1973) | |
| 244354 | Mende | nika | | | Laycock (1968) | |
| 4839 | Menya | yaaqa | | | Lloyd (1973) | |
| 158846 | Mesem | iʌm | | | McElhanon and Voorhoeve (1970) | louse |
| 91414 | Mesem | ləm | louse | | McElhanon (1967) | louse |
| 34348 | Meyah (Akrin Dialect) | mè:t | | | Miedema & Welling (1985) | |
| 34388 | Meyah (Anason Dialect) | meys | | | Miedema & Welling (1985) | |
| 34509 | Meyah (Etskebi Dialect) | meys | | | Miedema & Welling (1985) | |
| 34549 | Meyah (Miun Dialect) | mais | | | Miedema & Welling (1985) | |
| 34589 | Meyah (Mumbrani Dialect) | mè(i)t(s) | | | Miedema & Welling (1985) | |
