| 120397 | Matepi | nome- | | | Z'graggen (1980) | nose |
| 139730 | Mauwake | mikapura | | | Z'graggen (1980) | nose |
| 139734 | Mawak | muŋgasik | | | Z'graggen (1980) | nose |
| 120395 | Mawan | no- | | | Z'graggen (1980) | nose |
| 120394 | Mawan | nomahi- | | | Z'graggen (1980) | nose |
| 77800 | Maybrat | -naif | | | Dol (2007) | |
| 77095 | Mbaniata | emō | nose | | Tryon & Hackman (1983) | |
| 76842 | Mbaniata (Lokuru Dialect) | emɔ | nose | | Tryon & Hackman (1983) | |
| 76575 | Mbilua | ŋgame | nose | | Tryon & Hackman (1983) | |
| 76578 | Mbilua | ziŋɔ | nose | | Tryon & Hackman (1983) | |
| 76292 | Mbilua (Ndovele Dialect) | ŋgame | nose | | Tryon & Hackman (1983) | |
| 236795 | Mbore | ŋgorak | | | Foley (2005) | |
| 243318 | Mehek | wiliŋki | | | Laycock (1968) | |
| 237 | Mena | boƀo | | | Franklin (1973) | |
| 243327 | Mende | miñompo | | | Laycock (1968) | |
| 4765 | Menya | hima | | | Lloyd (1973) | |
| 90882 | Mesem | siŋgeŋ | (its) nose | | McElhanon (1967) | (its) nose |
| 155335 | Mesem | siŋgɛŋ | | | McElhanon and Voorhoeve (1970) | nose |
| 139729 | Miani | -igit | | | Z'graggen (1980) | nose |
| 218219 | Migabac | sogo | | | SIL (1975) | |
| 155337 | Migabac | sogo | | | McElhanon and Voorhoeve (1970) | nose |
| 176718 | Migum | sumbe | | | Z'graggen (1980) | nose |
| 3034 | Minanibai | desi | | | Franklin (1973) | |
| 243306 | Minidien | mohau | | | Laycock (1968) | |
| 139732 | Moere | montkon | | | Z'graggen (1980) | nose |
| 29594 | Molof | toŋga | | | Voorhoeve (1971) | |
| 155338 | Momare | soŋke | | | McElhanon and Voorhoeve (1970) | nose |
| 7304 | Moni (Kemandoga Dialect) | jange | | | Larson & Larson (1972) | |
| 32319 | Morawa | dunun | | | SIL (1973) | |
| 191056 | Moresada | -sikumun | | | Z'graggen (1980) | nose |
| 3453 | Morigi | woᵊdi | | | Wurm (1973) | |
| 120387 | Mosimo | now- | | | Z'graggen (1980) | nose |
| 257579 | Motu | udu- | | | Dutton (1970) | nose |
| 14635 | Mountain Koiari | uli | nose | | Dutton (2010) | |
| 27412 | Mubami | dɛhi | | | Reesink (1976) | |
| 3351 | Mubami | dehi | | | Franklin (1973) | |
| 257580 | Mulaha | ine | | | Dutton (1970) | nose |
| 191052 | Mum | mondugu | | | Z'graggen (1980) | nose |
| 198572 | Mungkip | mimiŋge | | | Retsema et al. (2009) | |
| 155322 | Mungkip | miminɛ | | | McElhanon and Voorhoeve (1970) | nose |
| 120372 | Munit | mede- | | | Z'graggen (1980) | nose |
| 155280 | Muratayak | sagan | | | McElhanon and Voorhoeve (1970) | nose |
| 240537 | Murik (Karau Dialect) | ˈdaul(ř) | | | Abbott (1985) | |
| 240644 | Murik (Wagamut Dialect) | ˈdaul(ř) | | | Abbott (1985) | |
| 7856 | Murik | daur | | | Foley (1986) | |
| 236124 | Murik | daur | | | Foley (2005) | |
| 235454 | Murik | daur | | | Foley (2005) | |
| 120383 | Murupi | nova- | | | Z'graggen (1980) | nose |
| 120382 | Murupi | noβa- | | | Z'graggen (1980) | nose |
| 191061 | Musak | mumu ragʌr | | | Z'graggen (1980) | nose |
