| 193830 | Mum | may | | | Z'graggen (1980) | sharp |
| 260364 | Motu | mai miatana | | | Dutton (1970) | sharp |
| 260363 | Motu | gano | | | Dutton (1970) | sharp |
| 125758 | Mosimo | a:guta | | | Z'graggen (1980) | sharp |
| 193834 | Moresada | iŋʌ- | | | Z'graggen (1980) | sharp |
| 144565 | Moere | awor | | | Z'graggen (1980) | (sharp) |
| 144562 | Miani | nɛna | | | Z'graggen (1980) | (sharp) |
| 196686 | Mian | tol | | | Loughnane and Fedden (2011) | |
| 76364 | Mbilua (Ndovele Dialect) | ivo | sharp | | Tryon & Hackman (1983) | |
| 76477 | Mbilua | ivo | sharp | | Tryon & Hackman (1983) | |
| 76742 | Mbaniata (Lokuru Dialect) | ɣɔɣɔfa | sharp | | Tryon & Hackman (1983) | |
| 77068 | Mbaniata | ɣoɣofa | sharp | | Tryon & Hackman (1983) | |
| 77950 | Maybrat | -aon | | | Dol (2007) | |
| 125765 | Mawan | aug | | | Z'graggen (1980) | sharp |
| 144567 | Mawak | awera | | | Z'graggen (1980) | (sharp) |
| 144563 | Mauwake | anima | | | Z'graggen (1980) | (sharp) |
| 125767 | Matepi | autɛg | | | Z'graggen (1980) | sharp |
| 260359 | Maria (Maranomu Dialect) | ariʔa | | | Dutton (1970) | sharp |
| 260357 | Maria (Maiagolo Dialect) | oʽraifa | | | Dutton (1970) | sharp |
| 181625 | Male | wiliko | | | Z'graggen (1980) | sharp |
| 144554 | Malas | anin | | | Z'graggen (1980) | (sharp) |
| 144558 | Mala | onɛk | | | Z'graggen (1980) | (sharp) |
| 86834 | Mailu (Island Dialect) | ʔani | | | Thomson (1975) | |
| 86560 | Mailu (Ilai Dialect) | ʔani | | | Thomson (1975) | |
| 87930 | Mailu (Geagea Dialect) | ʔani | | | Thomson (1975) | |
| 87382 | Mailu (Domara Dialect) | ʔani | | | Thomson (1975) | |
| 88204 | Mailu (Delebai Dialect) | ʔani | | | Thomson (1975) | |
| 88478 | Mailu (Darava Dialect) | ʔani | | | Thomson (1975) | |
| 87108 | Mailu (Borebo Dialect) | ʔani | | | Thomson (1975) | |
| 87656 | Mailu (Baibara Dialect) | ʔani | | | Thomson (1975) | |
| 86286 | Mailu (Asiaoro Dialect) | ʔani | | | Thomson (1975) | |
| 75282 | Mailu | ani | | | Saville (1912) | |
| 144561 | Maia (Saki Dialect) | maip | | | Z'graggen (1980) | (sharp) |
| 144560 | Maia (Saki Dialect) | wɛnɛt | | | Z'graggen (1980) | (sharp) |
| 144559 | Maia (Pila Dialect) | wɛŋey | | | Z'graggen (1980) | (sharp) |
| 76125 | Lavukaleve | hasisi | sharp | | Tryon & Hackman (1983) | |
| 166038 | Kuot | oror | adj | | Lindström (2008) | |
| 144566 | Kowaki | aβera | | | Z'graggen (1980) | (sharp) |
| 210684 | Korowai | ɸu:ɾ | | | Hughes (2009) | |
| 144556 | Korak | ikikin | | | Z'graggen (1980) | (sharp) |
| 210888 | Komyandaret | juluˈwebʷɔ | | | Hughes (2009) | |
| 196212 | Kobon | kɨd g- | + | | Pawley (2013) | |
| 144571 | Kobol | ɛninɔt- (v) | | | Z'graggen (1980) | (sharp) |
| 77578 | Klon | mang | | | Baird (2008) | |
| 33350 | Keuw | díβəә̀mbyáa-yò | | | Kamholz (2012) | |
| 125745 | Kein | aig | | | Z'graggen (1980) | sharp |
| 216642 | Kaure | kahia | | | Clouse (1997) | |
| 125742 | Kare | ugabu | | | Z'graggen (1980) | sharp |
| 195790 | Kalam | kdkd | | | Pawley (2013) | |
| 195791 | Kalam | kd g- | | | Pawley (2013) | |
