| 233272 | Mali (Makunga Dialect) | ƀʌtka | | | SIL (1985) | |
| 237363 | Manambu | wɨy | | | Foley (2005) | |
| 201361 | Mandobo Atas | bütüp | | | Voorhoeve (2000) | |
| 231293 | Mandobo Atas | butüp | | | Healey (1970) | |
| 231477 | Mandobo Atas (Kwem Dialect) | butüp | | | Healey (1970) | |
| 201445 | Mandobo Atas (Yonggom Dialect) | bitip | | | Voorhoeve (2000) | |
| 29548 | Manem | juf | | | Voorhoeve (1971) | |
| 261201 | Manep | amun | | | Pick (2019) | house |
| 236751 | Marangis | endau | | | Foley (2005) | |
| 258759 | Maria (Maiagolo Dialect) | ˈyava | | | Dutton (1970) | house |
| 258761 | Maria (Maranomu Dialect) | ˈyava | | | Dutton (1970) | house |
| 258763 | Maria (Uderi Dialect) | ˈyava | | | Dutton (1970) | house |
| 258764 | Maria | ˈyaua | | | Dutton (1970) | house |
| 123829 | Matepi | lʌ | | | Z'graggen (1980) | house |
| 142852 | Mauwake | kora | | | Z'graggen (1980) | house |
| 142856 | Mawak | tuʌr | | | Z'graggen (1980) | house |
| 123827 | Mawan | ra | | | Z'graggen (1980) | house |
| 77838 | Maybrat | amah | | | Dol (2007) | |
| 77841 | Maybrat | samu | | | Dol (2007) | |
| 77007 | Mbaniata | va | house | | Tryon & Hackman (1983) | |
| 76672 | Mbaniata (Lokuru Dialect) | va | house | | Tryon & Hackman (1983) | |
| 76467 | Mbilua | pande | house | | Tryon & Hackman (1983) | |
| 76384 | Mbilua (Ndovele Dialect) | pande | house | | Tryon & Hackman (1983) | |
| 236750 | Mbore | kak | | | Foley (2005) | |
| 142851 | Miani | dua | | | Z'graggen (1980) | house |
| 218320 | Migabac | mac | | | SIL (1975) | |
| 179866 | Migum | wande | | | Z'graggen (1980) | house |
| 142854 | Moere | kor | | | Z'graggen (1980) | house |
| 192837 | Moresada | muŋgup | | | Z'graggen (1980) | house |
| 123820 | Mosimo | yʌ: | | | Z'graggen (1980) | house |
| 258766 | Motu | hanua | | | Dutton (1970) | house |
| 258767 | Mulaha | niva | | | Dutton (1970) | house |
| 192833 | Mum | tʌβ | | | Z'graggen (1980) | house |
| 198665 | Mungkip | jot | | | Retsema et al. (2009) | |
| 123805 | Munit | debe | | | Z'graggen (1980) | house |
| 240602 | Murik (Karau Dialect) | ˈiřan | | | Abbott (1985) | |
| 240699 | Murik (Wagamut Dialect) | ˈiřan | | | Abbott (1985) | |
| 236069 | Murik | iran | | | Foley (2005) | |
| 235399 | Murik | iran | | | Foley (2005) | |
| 123817 | Murupi | za:u | | | Z'graggen (1980) | house |
| 192842 | Musak | uːrʉ | | | Z'graggen (1980) | house |
| 142858 | Musar | fa | | | Z'graggen (1980) | house |
| 197785 | Nagatiman | toh | | | Conrad and Dye (1975) | |
| 214062 | Nakai | ʔɔp | | | Hughes (2009) | |
| 199141 | Nakame (Dzenzen Dialect) | joq | | | Retsema et al. (2009) | |
| 199756 | Nakame (Gufin Dialect) | jot | | | Retsema et al. (2009) | |
| 199667 | Nakame (Munguleng Dialect) | jot | | | Retsema et al. (2009) | |
| 199268 | Nakame (Popof Dialect) | jot | | | Retsema et al. (2009) | |
| 198782 | Nakame (Sikalan Dialect) | jot | | | Retsema et al. (2009) | |
| 198901 | Nakame (Sokan Dialect) | jot̪ | | | Retsema et al. (2009) | |
