| 58346 | Mampruli | ma | | | Kropp Dakubu (1980) | |
| 44724 | Manchu | mimbe | | | Gorelova (2002) | |
| 54406 | Mandahuaca | núwha | | | Ramirez (2001) | |
| 42926 | Mandarin | wǒ | | | Hyslop (2014) | |
| 46732 | Mandobo | nöp | | | Wester (2014) | |
| 50720 | Mangarayi | ŋan | | | Merlan (1989) | |
| 40351 | Manikion | dan | | | Reesink (2002) | |
| 41916 | Mansim | danu | | | Reesink (2002) | |
| 50672 | Maori | ahau | The form /au/ is also listed (Harlow 1996:6). | | Harlow (1996) | |
| 25114 | Mara | ŋinara | | | Heath (1981) | |
| 24434 | Maranunggu | -ŋañ | | | Tryon (1970) | |
| 28430 | Martuthunira | nganaju | | | Dench (1995) | |
| 30993 | Mathi-Mathi | yenin, yandin | | | Blake et al. (2011) | |
| 61986 | Mathi-Mathi | yinan | | | Blake et al. (2011) | |
| 39399 | Mauwake | efa | | | Berghäll (2010) | |
| 33560 | Mauwake | efa | | | Berghäll (2010) | |
| 48668 | Mavea | -ao | | | Guérin (2011) | |
| 57006 | Mayogo | ma | | | Sawka (2001) | |
| 56490 | Mbato | mõ˥ | | | Grassias and Bolé-Richard (1983) | |
| 58442 | Mbelimbe | n˧ | | | Neukom (2004) | |
| 24098 | Mblafe | ᵑgɐ | | | Doehler, Christian () | |
| 44005 | Mbugu (Inner Dialect) | ání | | | Mous (2003) | |
| 44053 | Mbugu (Normal Dialect) | mmí | | | Mous (2003) | |
| 41684 | Mehek | onda | | | Paulon et al. (2002) | |
| 60076 | Mekens-ICR-LB | o- | | | Galucio (2001) | |
| 60830 | Mekens-ICR-RH | o- | | | Vilacy (2001) | |
| 60446 | Mekens_ICR_TCC | õt | | | Galucio (2001) | |
| 60220 | Mekens-ICR-WB | ōt | | | Vilacy Galucio, Ana. 2001 () | |
| 41368 | Mende | anin | | | Hoel et al. (1994) | |
| 35377 | Menya | ɲi | | | Whitehead (2004) | |
| 42664 | Meriam | kári | | | Piper (1989) | |
| 50864 | Mewati | mɛ̃ | | | Gusain (2003) | |
| 40303 | Meyah | didif | | | Gravelle (2004) | |
| 30645 | Mian | néle- | | | Fedden (2007) | |
| 30643 | Mian | né | | | Fedden (2007) | |
| 30644 | Mian | né- | | | Fedden (2007) | |
| 39762 | Mian | né | | | Fedden (2007) | |
| 43909 | Modern Hebrew | -i | | | Glinert (1989) | |
| 31064 | Moken | cǔy | | | Veena (1980) | |
| 31063 | Moken | cii | | | Veena (1980) | |
| 46684 | Mombum | nɛi | | | Boelaars (1950) | |
| 48860 | Mongolian (Halh Dialect) | namaig | | | Gaunt and Bayarmandakh (2004) | |
| 50060 | Mono | -afa | | | Evans (2015) | |
| 45828 | Morisyen | mwa | | | Baker (1972) | |
| 43656 | Moroccan Arabic | -i | | | Harrell (1962) | |
| 35105 | Moskona | dif | | | Gravelle (2010) | |
| 60926 | Mpakwithi | n̪an̪i | | | Dixon (1981) | |
| 61829 | Mpur | in | | | Odé (2002) | |
| 40672 | Mufian | ae' | | | Conrad et al. (1978) | |
| 52572 | Muinane | úúxóʔo | | | Walton, Hensarling and Maxwell (2000) | |
