| 142707 | Moere | (ipi) fumʌ | | | Z'graggen (1980) | (ashes) |
| 25933 | Mlap | suŋ | | | Voorhoeve (1975) | |
| 3064 | Minanibai | ᵽaniᵽo | | | Franklin (1973) | |
| 179719 | Migum | kɔge | | | Z'graggen (1980) | ashes |
| 159843 | Migabac | defe | | | McElhanon and Voorhoeve (1970) | ashes |
| 218240 | Migabac | ʒac ʒefe | | | SIL (1975) | |
| 142703 | Miani | tabur | | | Z'graggen (1980) | ash |
| 159760 | Mian | kutab | | | McElhanon and Voorhoeve (1970) | ashes |
| 197030 | Mian | kib | | | Loughnane and Fedden (2011) | |
| 20345 | Meyah | moŋkoru | | | Voorhoeve (1975) | |
| 34570 | Meyah (Mumbrani Dialect) | maywohka | | | Miedema & Welling (1985) | |
| 34530 | Meyah (Miun Dialect) | hasmin | | | Miedema & Welling (1985) | |
| 34490 | Meyah (Etskebi Dialect) | m(e)raxfaf | | | Miedema & Welling (1985) | |
| 34369 | Meyah (Anason Dialect) | (e)xèmis | | | Miedema & Welling (1985) | |
| 34329 | Meyah (Akrin Dialect) | maywohka | | | Miedema & Welling (1985) | |
| 159840 | Mesem | ko | | | McElhanon and Voorhoeve (1970) | ashes |
| 91316 | Mesem | dzita | ashes | | McElhanon (1967) | ashes |
| 4795 | Menya | wataaka | | | Lloyd (1973) | |
| 4515 | Mena | kabia | | | Franklin (1973) | |
| 4514 | Mena | kumu | | | Franklin (1973) | |
| 25853 | Mekwei | ku-suŋ | | | Voorhoeve (1975) | |
| 76417 | Mbilua (Ndovele Dialect) | pari | ashes | | Tryon & Hackman (1983) | |
| 76624 | Mbilua | pari | ashes | | Tryon & Hackman (1983) | |
| 76662 | Mbaniata (Lokuru Dialect) | tumbutumbu | ashes | | Tryon & Hackman (1983) | |
| 77058 | Mbaniata | tumbutumbu | ashes | | Tryon & Hackman (1983) | |
| 77880 | Maybrat | poh | | | Dol (2007) | |
| 25733 | Mawes | das | | | Voorhoeve (1975) | |
| 123669 | Mawan | kuʌ:p | | | Z'graggen (1980) | ashes |
| 142709 | Mawak | fʌmu | | | Z'graggen (1980) | (ashes) |
| 142704 | Mauwake | fɔmʌ | | | Z'graggen (1980) | (ashes) |
| 123671 | Matepi | gauh | | | Z'graggen (1980) | ashes |
| 123672 | Matepi | urit | | | Z'graggen (1980) | ashes |
| 21904 | Marind, Bian | gum | | | Voorhoeve (1975) | |
| 159780 | Marind (Gawir Dialect) | gum | | | McElhanon and Voorhoeve (1970) | ashes |
| 22305 | Marind | gum | | | Voorhoeve (1975) | |
| 258311 | Maria | uˈto | | | Dutton (1970) | ashes (black) |
| 258309 | Maria (Uderi Dialect) | uˈto | | | Dutton (1970) | ashes (black) |
| 258307 | Maria (Maranomu Dialect) | uˈto | | | Dutton (1970) | ashes (black) |
| 258305 | Maria (Maiagolo Dialect) | uˈso | | | Dutton (1970) | ashes (black) |
| 159850 | Mape (West Dialect) | kɔme | | | McElhanon and Voorhoeve (1970) | ashes |
| 159849 | Mape (Naga Dialect) | kɔme | | | McElhanon and Voorhoeve (1970) | ashes |
| 159851 | Mape (East Dialect) | kɔme | | | McElhanon and Voorhoeve (1970) | ashes |
| 91322 | Mape | dzafe | ashes | | McElhanon (1967) | ashes |
| 20425 | Manikion | hikoru | | | Voorhoeve (1975) | |
| 19173 | Manem | wusmuf | | | Voorhoeve (1975) | |
| 29461 | Manem | wusmuf | | | Voorhoeve (1971) | |
| 25533 | Mandobo Atas | kotep | | | Voorhoeve (1975) | |
| 159756 | Mandobo Atas | kotep | | | McElhanon and Voorhoeve (1970) | ashes |
| 22795 | Mander | son-dos | | | Voorhoeve (1975) | |
| 159816 | Ma Manda | kafuruŋ | | | McElhanon and Voorhoeve (1970) | ashes |
