| 61976 | Mathi-Mathi | ngalithu | | | Blake et al. (2011) | |
| 33585 | Mauwake | yiar | | | Berghäll (2010) | |
| 39424 | Mauwake | yiena | | | Berghäll (2010) | |
| 33584 | Mauwake | (y)i | | | Berghäll (2010) | |
| 33583 | Mauwake | yiena | | | Berghäll (2010) | |
| 33582 | Mauwake | y- | | | Berghäll (2010) | |
| 48655 | Mavea | darua | | | Guérin (2011) | |
| 56993 | Mayogo | naanɨ́ | | | Sawka (2001) | |
| 56477 | Mbato | lo˩˧ | | | Grassias and Bolé-Richard (1983) | |
| 58429 | Mbelimbe | ti˧ | | | Neukom (2004) | |
| 24111 | Mblafe | ⁿdene | | | Doehler, Christian () | |
| 43992 | Mbugu (Inner Dialect) | kánu | | | Mous (2003) | |
| 44040 | Mbugu (Normal Dialect) | -etú | | | Mous (2003) | |
| 60063 | Mekens-ICR-LB | ki- | | | Galucio (2001) | |
| 60817 | Mekens-ICR-RH | ki- | | | Vilacy (2001) | |
| 60433 | Mekens_ICR_TCC | ki | | | Galucio (2001) | |
| 60207 | Mekens-ICR-WB | ose | | | Vilacy Galucio, Ana. 2001 () | |
| 41355 | Mende | šihi | | | Hoel et al. (1994) | |
| 35390 | Menya | yeqä | | | Whitehead (2004) | |
| 42651 | Meriam | meriba | | | Piper (1989) | |
| 50851 | Mewati | həm | | | Gusain (2003) | |
| 40290 | Meyah | nafnan | | | Gravelle (2004) | |
| 39795 | Mian | níb | | | Fedden (2007) | |
| 30676 | Mian | níb | | | Fedden (2007) | |
| 43896 | Modern Hebrew | -ˈɛnu | | | Glinert (1989) | |
| 31089 | Moken | kamoy | | | Veena (1980) | |
| 31090 | Moken | ʔetaʔ | | | Veena (1980) | |
| 46671 | Mombum | numa | | | Boelaars (1950) | |
| 48847 | Mongolian (Halh Dialect) | bidnii | | | Gaunt and Bayarmandakh (2004) | |
| 50047 | Mono | -ra | | | Evans (2015) | |
| 45815 | Morisyen | nu | | | Baker (1972) | |
| 43643 | Moroccan Arabic | -na | | | Harrell (1962) | |
| 35118 | Moskona | yefyen | | | Gravelle (2010) | |
| 60913 | Mpakwithi | læmɽi | | | Dixon (1981) | |
| 61816 | Mpur | (w)o- | | | Odé (2002) | |
| 40659 | Mufian | ae' iné'i- | | | Conrad et al. (1978) | |
| 52559 | Muinane | mo- | | | Walton, Hensarling and Maxwell (2000) | |
| 57137 | Mumuye (Zing Dialect) | wò | | | Shimizu (1983) | |
| 34715 | Muna | -nto | | | van den Berg (1989) | |
| 60303 | Mundari-ICR-KQ | alaŋaʔ | | | Osada (1992) | |
| 60015 | Mundari-ICR-LB | aliŋaʔ | | | Osada (1992) | |
| 60486 | Mundari_ICR_TCC | alaŋaʔ | | | Osada (1992) | |
| 59192 | Mungbam (Abar Dialect) | sɔ˦ | | | Lovegren (2013) | |
| 59238 | Mungbam (Biya Dialect) | sə˥ | | | Lovegren (2013) | |
| 59285 | Mungbam (Missong Dialect) | sə˦ | | | Lovegren (2013) | |
| 59134 | Mungbam (Munken Dialect) | sə˦ | | | Lovegren (2013) | |
| 59333 | Mungbam (Ngun Dialect) | sə˥ | | | Lovegren (2013) | |
| 53738 | Murui Huitoto | koko | There is the feminine form kaiɲaɨe | | Piñeros and Roselli (2000) | |
| 25466 | Muruwari | ngalika | | | Oates (1988) | |
| 47893 | Mussau-Emira | -italua | | | Lynch et al. (2002) | |
