| 159331 | Mian | sok | | | McElhanon and Voorhoeve (1970) | rain |
| 196684 | Mian | sók | | | Loughnane and Fedden (2011) | |
| 143325 | Miani | nat | | | Z'graggen (1980) | rain |
| 218266 | Migabac | hae | | | SIL (1975) | |
| 180353 | Migum | koub | | | Z'graggen (1980) | rain |
| 3055 | Minanibai | dareᵽo | rain | | Franklin (1973) | rain |
| 243880 | Minidien | mukɨ | | | Laycock (1968) | |
| 143328 | Moere | ipi | | | Z'graggen (1980) | rain |
| 29595 | Molof | nemei | rain | | Voorhoeve (1971) | rain |
| 159418 | Momare | hae | | | McElhanon and Voorhoeve (1970) | rain |
| 7306 | Moni (Kemandoga Dialect) | janga | rain | | Larson & Larson (1972) | rain |
| 193112 | Moresada | sɨrʌp | | | Z'graggen (1980) | rain |
| 3474 | Morigi | wihale | rain | | Wurm (1973) | rain |
| 124368 | Mosimo | vɔ | | | Z'graggen (1980) | rain |
| 258081 | Motu | medu | | | Dutton (1970) | rain |
| 3442 | Mubami | golo′i | rain | | Franklin (1973) | rain |
| 27439 | Mubami | goloi | rain | | Reesink (1976) | rain |
| 27440 | Mubami | dalɛhɔ | rain | | Reesink (1976) | rain |
| 3372 | Mubami | gozoi | rain | | Franklin (1973) | rain |
| 258082 | Mulaha | iabara | | | Dutton (1970) | rain |
| 193108 | Mum | kuku | | | Z'graggen (1980) | rain |
| 159400 | Mungkip | gwi | | | McElhanon and Voorhoeve (1970) | rain |
| 198638 | Mungkip | gwi | | | Retsema et al. (2009) | |
| 124354 | Munit | vã:ne | | | Z'graggen (1980) | rain |
| 159357 | Muratayak | agu | | | McElhanon and Voorhoeve (1970) | rain |
| 240562 | Murik (Karau Dialect) | ˈařʊm | | | Abbott (1985) | |
| 240667 | Murik (Wagamut Dialect) | ařum | | | Abbott (1985) | |
| 240666 | Murik (Wagamut Dialect) | ˈalʊm | | | Abbott (1985) | |
| 124365 | Murupi | au | | | Z'graggen (1980) | rain |
| 193115 | Musak | ʌm | | | Z'graggen (1980) | rain |
| 143332 | Musar | simbik | | | Z'graggen (1980) | rain |
| 159328 | Muyu, North | am | | | McElhanon and Voorhoeve (1970) | rain |
| 159329 | Muyu, South | am | | | McElhanon and Voorhoeve (1970) | rain |
| 159415 | Nabak | map | | | McElhanon and Voorhoeve (1970) | rain |
| 90865 | Nabak | map | rain | | McElhanon (1967) | rain |
| 243878 | Nabi | sup | | | Laycock (1968) | |
| 197809 | Nagatiman | tu | | | Conrad and Dye (1975) | |
| 214049 | Nakai | ˈʔæmgɑ | | | Hughes (2009) | |
| 159397 | Nakame | gwi | | | McElhanon and Voorhoeve (1970) | rain |
| 199113 | Nakame (Dzenzen Dialect) | gwi | | | Retsema et al. (2009) | |
| 199635 | Nakame (Munguleng Dialect) | gwi | | | Retsema et al. (2009) | |
| 199240 | Nakame (Popof Dialect) | gwi | | | Retsema et al. (2009) | |
| 198755 | Nakame (Sikalan Dialect) | smaptan | | | Retsema et al. (2009) | |
| 198876 | Nakame (Sokan Dialect) | gimɑdi | | | Retsema et al. (2009) | |
| 198994 | Nakame (Wasin Dialect) | gwi | | | Retsema et al. (2009) | |
| 124367 | Nake | vʌ: | | | Z'graggen (1980) | rain |
| 237619 | Namia | lau | | | Foley (2005) | |
| 243902 | Namia | lau | | | Laycock (1968) | |
| 159398 | Nek | gwi | | | McElhanon and Voorhoeve (1970) | rain |
| 200209 | Nek (Goambot Dialect) | gwi | | | Retsema et al. (2009) | |
