| 259104 | Maria (Maranomu Dialect) | (ˈyava)ˈruʔa | | | Dutton (1970) | new (house) |
| 259106 | Maria (Uderi Dialect) | (ˈyava)rˈuʔa | | | Dutton (1970) | new (house) |
| 259108 | Maria | (ˈyaua)ˈruʔai | | | Dutton (1970) | new (house) |
| 125674 | Matepi | yor | | | Z'graggen (1980) | new |
| 144469 | Mauwake | enuma | | | Z'graggen (1980) | green, new |
| 144473 | Mawak | nomuŋ | | | Z'graggen (1980) | (new) |
| 125672 | Mawan | yar | | | Z'graggen (1980) | new |
| 125671 | Mawan | roug | | | Z'graggen (1980) | new |
| 76977 | Mbaniata | avorota | new | | Tryon & Hackman (1983) | |
| 76830 | Mbaniata (Lokuru Dialect) | avorota | new | | Tryon & Hackman (1983) | |
| 76638 | Mbilua | vairu-ama | new | | Tryon & Hackman (1983) | |
| 76439 | Mbilua (Ndovele Dialect) | vairu | new | | Tryon & Hackman (1983) | |
| 290 | Mena | wasiạ konau | | | Franklin (1973) | |
| 4818 | Menya | hanga | | | Lloyd (1973) | |
| 155642 | Mesem | alak | | | McElhanon and Voorhoeve (1970) | new |
| 91120 | Mesem | gorəŋ | new | | McElhanon (1967) | new |
| 144468 | Miani | yom | | | Z'graggen (1980) | (new) |
| 218353 | Migabac | qelicne | | | SIL (1975) | |
| 155644 | Migabac | gberiʔ | | | McElhanon and Voorhoeve (1970) | new |
| 181529 | Migum | juŋ | | | Z'graggen (1980) | new |
| 3087 | Minanibai | darimokasie | | | Franklin (1973) | |
| 144471 | Moere | yɛmp | | | Z'graggen (1980) | (new) |
| 29592 | Molof | rof | | | Voorhoeve (1971) | |
| 155645 | Momare | gberiʔ | | | McElhanon and Voorhoeve (1970) | new |
| 193785 | Moresada | usu- | | | Z'graggen (1980) | new |
| 3506 | Morigi | olio | | | Wurm (1973) | |
| 125663 | Mosimo | kauta | | | Z'graggen (1980) | new |
| 259110 | Motu | matamata | | | Dutton (1970) | new (house) |
| 15462 | Mountain Koiari | isahete | green wood, young person | | Dutton (2010) | |
| 27478 | Mubami | giala | | | Reesink (1976) | |
| 82988 | Mum | kɨɣi | | | Daniels (2010) | |
| 193781 | Mum | kʉgi | | | Z'graggen (1980) | new |
| 198619 | Mungkip | kʰubri | | | Retsema et al. (2009) | |
| 155625 | Mungkip | kubuli | | | McElhanon and Voorhoeve (1970) | new |
| 125644 | Munit | eraʔ | | | Z'graggen (1980) | new |
| 155588 | Muratayak | ʌndʌgum | | | McElhanon and Voorhoeve (1970) | new |
| 240619 | Murik (Karau Dialect) | ˈnəŋgəmoŋgo | | | Abbott (1985) | |
| 125658 | Murupi | ofua | | | Z'graggen (1980) | new |
| 193790 | Musak | kikɨ | | | Z'graggen (1980) | new |
| 144475 | Musar | noːmu | | | Z'graggen (1980) | (new) |
| 155567 | Muyu, North | kuri | | | McElhanon and Voorhoeve (1970) | new |
| 155568 | Muyu, South | kiri | | | McElhanon and Voorhoeve (1970) | new |
| 91131 | Nabak | arakŋəŋ | new | | McElhanon (1967) | new |
| 155641 | Nabak | arak | | | McElhanon and Voorhoeve (1970) | new |
| 197800 | Nagatiman | tihųʔ | | | Conrad and Dye (1975) | |
| 214110 | Nakai | ˈʔɑːbim | | | Hughes (2009) | |
| 155622 | Nakame | kaipm | | | McElhanon and Voorhoeve (1970) | new |
| 199095 | Nakame (Dzenzen Dialect) | qɑipm̩ | | | Retsema et al. (2009) | |
| 199727 | Nakame (Gufin Dialect) | kubuli | | | Retsema et al. (2009) | |
| 199611 | Nakame (Munguleng Dialect) | qɑipmūŋ | | | Retsema et al. (2009) | |
