| 88073 | Mailu (Delebai Dialect) | korakorara | | | Thomson (1975) | |
| 87251 | Mailu (Domara Dialect) | gabagabani | | | Thomson (1975) | |
| 87799 | Mailu (Geagea Dialect) | korakorara | | | Thomson (1975) | |
| 86429 | Mailu (Ilai Dialect) | korakorara | | | Thomson (1975) | |
| 86703 | Mailu (Island Dialect) | gabagabani | | | Thomson (1975) | |
| 221301 | Maiwa | kʰani | | | SIL (1973) | |
| 144161 | Mala | ŋadeber | | | Z'graggen (1980) | green |
| 144157 | Malas | kandemben | | | Z'graggen (1980) | green |
| 181249 | Male | einǰɛn | | | Z'graggen (1980) | green |
| 91042 | Mape | buge | green | | McElhanon (1967) | green |
| 259009 | Maria (Maranomu Dialect) | ˈyoguˈyogu | | | Dutton (1970) | green |
| 259010 | Maria | ˈyogu | | | Dutton (1970) | green |
| 125330 | Matepi | arip | | | Z'graggen (1980) | green |
| 144164 | Mauwake | ɛnuma | | | Z'graggen (1980) | green |
| 144167 | Mawak | nomunomu | | | Z'graggen (1980) | green |
| 125329 | Mawan | ʌaripɛ | | | Z'graggen (1980) | green |
| 77894 | Maybrat | safom | | | Dol (2007) | |
| 77049 | Mbaniata | hiu[ta] | green | | Tryon & Hackman (1983) | |
| 76701 | Mbaniata (Lokuru Dialect) | hiuta | green | | Tryon & Hackman (1983) | |
| 76619 | Mbilua | luŋgumu-ama | green | | Tryon & Hackman (1983) | |
| 286 | Mena | kasiabari | | | Franklin (1973) | |
| 4814 | Menya | hevaatɨqa | | | Lloyd (1973) | |
| 91036 | Mesem | kokŋ̣ | green | | McElhanon (1967) | green |
| 218343 | Migabac | hedoŋqeli | | | SIL (1975) | |
| 181236 | Migum | ken | | | Z'graggen (1980) | green |
| 3083 | Minanibai | pahonikapi | | | Franklin (1973) | |
| 144166 | Moere | inem | | | Z'graggen (1980) | green |
| 193616 | Moresada | nʌmbəp | | | Z'graggen (1980) | green |
| 3502 | Morigi | pitama | | | Wurm (1973) | |
| 125324 | Mosimo | bobrɛ | | | Z'graggen (1980) | green |
| 259011 | Motu | gadokagadoka | | | Dutton (1970) | green |
| 27474 | Mubami | awosəʔiwogo | | | Reesink (1976) | |
| 198674 | Mungkip | jabain | | | Retsema et al. (2009) | |
| 125313 | Munit | ʌraga | | | Z'graggen (1980) | green |
| 125321 | Murupi | aulɛsa | | | Z'graggen (1980) | green |
| 193619 | Musak | niŋ | | | Z'graggen (1980) | green |
| 144169 | Musar | nenomo | | | Z'graggen (1980) | green |
| 91047 | Nabak | araŋəŋ | green | | McElhanon (1967) | green |
| 214091 | Nakai | ˈɑːsuqɑt | | | Hughes (2009) | |
| 199151 | Nakame (Dzenzen Dialect) | qɑiqɑiqɑŋ | | | Retsema et al. (2009) | |
| 199678 | Nakame (Munguleng Dialect) | qɑiqɑiqɑŋ | | | Retsema et al. (2009) | |
| 199279 | Nakame (Popof Dialect) | qɑiχɑiχɑini | | | Retsema et al. (2009) | |
| 198792 | Nakame (Sikalan Dialect) | kaikaikeŋ | | | Retsema et al. (2009) | |
| 198911 | Nakame (Sokan Dialect) | qɑiʁɑiʁɑŋ | | | Retsema et al. (2009) | |
| 199031 | Nakame (Wasin Dialect) | qɑiʁɑiʁɛn | | | Retsema et al. (2009) | |
| 125323 | Nake | lavɛh | | | Z'graggen (1980) | green |
| 155656 | Nankina | kwʌndʌkʌm | | | McElhanon and Voorhoeve (1970) | green |
| 200244 | Nek (Goambot Dialect) | ŋkɑikɑiŋɛn | | | Retsema et al. (2009) | |
| 155660 | Nimi | gibukŋ | | | McElhanon and Voorhoeve (1970) | green |
| 125332 | Nobonob | aduf | | | Z'graggen (1980) | green |
