| 120489 | Mawan | a: | | | Z'graggen (1980) | tooth |
| 25765 | Mawes | wan | | | Voorhoeve (1975) | |
| 77896 | Maybrat | -pat | | | Dol (2007) | |
| 77897 | Maybrat | -apat | | | Dol (2007) | |
| 77014 | Mbaniata | vo nane | tooth | | Tryon & Hackman (1983) | |
| 76717 | Mbaniata (Lokuru Dialect) | nāne | tooth | | Tryon & Hackman (1983) | |
| 76643 | Mbilua | taka | tooth | | Tryon & Hackman (1983) | |
| 76252 | Mbilua (Ndovele Dialect) | taka | tooth | | Tryon & Hackman (1983) | |
| 236765 | Mbore | ndar | | | Foley (2005) | |
| 243401 | Mehek | mpi | | | Laycock (1968) | |
| 25885 | Mekwei | siŋyaŋ | | | Voorhoeve (1975) | |
| 239 | Mena | kaiyɔ | | | Franklin (1973) | |
| 243410 | Mende | fu | | | Laycock (1968) | |
| 4767 | Menya | heqwaanga | | | Lloyd (1973) | |
| 91526 | Mesem | dzət- | (its) tooth | | McElhanon (1967) | (its) tooth |
| 157386 | Mesem | dzʌt | | | McElhanon and Voorhoeve (1970) | tooth |
| 34361 | Meyah (Akrin Dialect) | mufon | | | Miedema & Welling (1985) | |
| 34401 | Meyah (Anason Dialect) | mefon | | | Miedema & Welling (1985) | |
| 34522 | Meyah (Etskebi Dialect) | bufon(afon) | | | Miedema & Welling (1985) | |
| 34562 | Meyah (Miun Dialect) | fon | | | Miedema & Welling (1985) | |
| 34603 | Meyah (Mumbrani Dialect) | mufon | | | Miedema & Welling (1985) | |
| 20377 | Meyah | bufon | | | Voorhoeve (1975) | |
| 157313 | Mian | niŋ | | | McElhanon and Voorhoeve (1970) | tooth |
| 139814 | Miani | -nena | | | Z'graggen (1980) | tooth |
| 218243 | Migabac | sofi | | | SIL (1975) | |
| 157388 | Migabac | miʔ | | | McElhanon and Voorhoeve (1970) | tooth |
| 176805 | Migum | bʌge | | | Z'graggen (1980) | tooth |
| 3036 | Minanibai | tou | | | Franklin (1973) | |
| 243389 | Minidien | panikye | | | Laycock (1968) | |
| 25965 | Mlap | səriŋ-dowŋ | | | Voorhoeve (1975) | |
| 139817 | Moere | nekere | | | Z'graggen (1980) | tooth |
| 20136 | Moi | efek | | | Voorhoeve (1975) | |
| 29616 | Molof | te | | | Voorhoeve (1971) | |
| 19651 | Molof | te | | | Voorhoeve (1975) | |
| 157389 | Momare | muʔ | | | McElhanon and Voorhoeve (1970) | tooth |
| 21141 | Mombum | zix | | | Voorhoeve (1975) | |
| 21535 | Momuna | ija | | | Voorhoeve (1975) | |
| 22377 | Moni | baga | | | Voorhoeve (1975) | |
| 7312 | Moni (Kemandoga Dialect) | baga | | | Larson & Larson (1972) | |
| 21816 | Mor | nasona | | | Voorhoeve (1975) | |
| 20177 | Moraid | etəla | | | Voorhoeve (1975) | |
| 25199 | Mor (Austronesian) | woto | | | Voorhoeve (1975) | |
| 32343 | Morawa | ma'akisa | | | SIL (1973) | |
| 191104 | Moresada | -gʌmbɔp | | | Z'graggen (1980) | tooth |
| 3455 | Morigi | ibonolo | | | Wurm (1973) | |
| 21495 | Morori | terox | | | Voorhoeve (1975) | |
| 120482 | Mosimo | fabu | | | Z'graggen (1980) | tooth |
| 120481 | Mosimo | a- | | | Z'graggen (1980) | tooth |
| 19085 | Moskona | ifon | | | Voorhoeve (1975) | |
| 34643 | Moskona (Merdey Dialect) | mu(o)fuon | | | Miedema & Welling (1985) | |
