| 50830 | Mewati | ja | | | Gusain (2003) | |
| 40269 | Meyah | ofa | | | Gravelle (2004) | |
| 30743 | Mian | é | | | Fedden (2007) | |
| 39864 | Mian | ó | | | Fedden (2007) | |
| 30746 | Mian | ó- | | | Fedden (2007) | |
| 30745 | Mian | ó | | | Fedden (2007) | |
| 30744 | Mian | é- | | | Fedden (2007) | |
| 43875 | Modern Hebrew | hi | | | Glinert (1989) | |
| 31139 | Moken | ñaa | | | Veena (1980) | |
| 31140 | Moken | ʔolaaŋ | | | Veena (1980) | |
| 46650 | Mombum | aːŋɡib | | | Boelaars (1950) | |
| 48826 | Mongolian (Halh Dialect) | tɛr | | | Gaunt and Bayarmandakh (2004) | |
| 50026 | Mono | ∅ | | | Evans (2015) | |
| 45794 | Morisyen | li | | | Baker (1972) | |
| 43622 | Moroccan Arabic | huwa | | | Harrell (1962) | |
| 35143 | Moskona | ofa | | | Gravelle (2010) | |
| 60892 | Mpakwithi | lu | | | Dixon (1981) | |
| 61795 | Mpur | men | | | Odé (2002) | |
| 40638 | Mufian | éko'w | | | Conrad et al. (1978) | |
| 52538 | Muinane | díígo | | | Walton, Hensarling and Maxwell (2000) | |
| 57116 | Mumuye (Zing Dialect) | wu | | | Shimizu (1983) | |
| 34749 | Muna | anoa | | | van den Berg (1989) | |
| 60282 | Mundari-ICR-KQ | ay | | | Osada (1992) | |
| 59994 | Mundari-ICR-LB | ay | | | Osada (1992) | |
| 60451 | Mundari_ICR_TCC | ay | | | Osada (1992) | |
| 59170 | Mungbam (Abar Dialect) | wu˦, u˦ | | | Lovegren (2013) | |
| 59217 | Mungbam (Biya Dialect) | wu˦, u˦ | | | Lovegren (2013) | |
| 59264 | Mungbam (Missong Dialect) | wu˦, u˦ | | | Lovegren (2013) | |
| 59113 | Mungbam (Munken Dialect) | wu˦, u˦ | | | Lovegren (2013) | |
| 59312 | Mungbam (Ngun Dialect) | ɥə˥ | | | Lovegren (2013) | |
| 53717 | Murui Huitoto | naiɲaiɲo | | | Piñeros and Roselli (2000) | |
| 25491 | Muruwari | nhumpa, nhampu | | | Oates (1988) | |
| 47878 | Mussau-Emira | e= | | | Lynch et al. (2002) | |
| 47868 | Mussau-Emira | ia | | | Lynch et al. (2002) | |
| 30434 | Nabak | ek | | | Fabian et al. (1998) | |
| 53382 | Nadëb | ta- | | | Bolaños and Epps (2009) | |
| 59602 | Nama | yəmo, yəmon | | | Evans et al (2017) | |
| 22325 | Nambu | ymo | | | Evans (2013) | |
| 41698 | Namia | eko | | | Feldpausch and Feldpausch (1992) | |
| 59698 | Namo (Tais Dialect) | yəmo | | | Evans et al (2017) | |
| 58360 | Nateni | nɩ˩ | | | Neukom (1995) | |
| 56648 | Nawuri | kə̀ | | | Sherwood (1982) | |
| 29112 | Ndjébbana | ŋayábba | | | McKay (2000) | |
| 46602 | Ndom | ɛf | | | Boelaars (1950) | |
| 55706 | Ndut | ɗi, ri | | | Morgan (1996) | |
| 43731 | Ndyuka | a | | | Huttar and Huttar (1994) | |
| 26131 | Neme | yəmo | | | Evans (2012) | |
| 22183 | Nen | ymam | | | Evans (2013) | |
| 35959 | Nen | ymam | | | Evans (2013) | |
| 61699 | Neve'ei | i | | | Musgrave (2007) | |
