| 75181 | Mailu | kokoa | | | Saville (1912) | |
| 75180 | Mailu | da | | | Saville (1912) | |
| 221330 | Maiwa | onan | | | SIL (1973) | |
| 145471 | Mala | ilʌ | | | Z'graggen (1980) | no |
| 145467 | Malas | ᵬɛgɛt | | | Z'graggen (1980) | no |
| 182478 | Male | ɛlɛg | | | Z'graggen (1980) | no |
| 233185 | Mali (Arambum Dialect) | kaku | | | SIL (1985) | |
| 233309 | Mali (Makunga Dialect) | ʌŋʌbʌs | | | SIL (1985) | |
| 260424 | Maria (Maiagolo Dialect) | ide + Verb | | | Dutton (1970) | not (negative) |
| 260426 | Maria (Maranomu Dialect) | de + Verb | | | Dutton (1970) | not (negative) |
| 260428 | Maria (Uderi Dialect) | ide + Verb | | | Dutton (1970) | not (negative) |
| 260430 | Maria | ide + Verb | | | Dutton (1970) | not (negative) |
| 126771 | Matepi | kwitug | | | Z'graggen (1980) | no |
| 126770 | Matepi | pi | | | Z'graggen (1980) | no |
| 145475 | Mauwake | wetʌk | | | Z'graggen (1980) | no |
| 145479 | Mawak | waik | | | Z'graggen (1980) | no |
| 126768 | Mawan | kwi(tuk) | | | Z'graggen (1980) | no |
| 77824 | Maybrat | fe | no | | Dol (2007) | |
| 77825 | Maybrat | kayie | not | | Dol (2007) | |
| 77831 | Maybrat | ehe | no | | Dol (2007) | |
| 76896 | Mbaniata | au | no | | Tryon & Hackman (1983) | |
| 76749 | Mbaniata (Lokuru Dialect) | au | no | | Tryon & Hackman (1983) | |
| 76640 | Mbilua | pui | no | | Tryon & Hackman (1983) | |
| 76266 | Mbilua (Ndovele Dialect) | puli | no | | Tryon & Hackman (1983) | |
| 196681 | Mian | besa | 'nothing, only' | | Loughnane and Fedden (2011) | |
| 145474 | Miani | we | | | Z'graggen (1980) | no |
| 218374 | Migabac | miac | | | SIL (1975) | |
| 182459 | Migum | kalom | | | Z'graggen (1980) | no |
| 145477 | Moere | mɛrɛᵬ | | | Z'graggen (1980) | no |
| 194343 | Moresada | kwetey | | | Z'graggen (1980) | no |
| 126760 | Mosimo | pi | | | Z'graggen (1980) | no |
| 260432 | Motu | verb + iasi | | | Dutton (1970) | not (negative) |
| 15639 | Mountain Koiari | (moaga) vesite | not (much) | | Dutton (2010) | |
| 194338 | Mum | maŋgi | | | Z'graggen (1980) | no |
| 198683 | Mungkip | mōŋ | | | Retsema et al. (2009) | |
| 126746 | Munit | taːmo | | | Z'graggen (1980) | no |
| 240622 | Murik (Karau Dialect) | ˈŋgwɛnde | | | Abbott (1985) | |
| 240715 | Murik (Wagamut Dialect) | ˈŋgwɛnde | | | Abbott (1985) | |
| 126757 | Murupi | pi | | | Z'graggen (1980) | no |
| 194348 | Musak | mabuŋ | | | Z'graggen (1980) | no |
| 145481 | Musar | mɛrɛp | | | Z'graggen (1980) | no |
| 197802 | Nagatiman | we:ɛ | | | Conrad and Dye (1975) | |
| 214170 | Nakai | ᵐbũ | | | Hughes (2009) | |
| 199162 | Nakame (Dzenzen Dialect) | moʁoŋ | | | Retsema et al. (2009) | |
| 199764 | Nakame (Gufin Dialect) | mokoŋ | | | Retsema et al. (2009) | |
| 199687 | Nakame (Munguleng Dialect) | mōŋ | | | Retsema et al. (2009) | |
| 199290 | Nakame (Popof Dialect) | moʁoŋ | | | Retsema et al. (2009) | |
| 198801 | Nakame (Sikalan Dialect) | mokaŋ | | | Retsema et al. (2009) | |
| 198920 | Nakame (Sokan Dialect) | numɨŋ | | | Retsema et al. (2009) | |
| 199039 | Nakame (Wasin Dialect) | moqoŋ | | | Retsema et al. (2009) | |
