| 158015 | Nimi | lutʌmgeʌk | | | McElhanon and Voorhoeve (1970) | straight |
| 157990 | Ngaing | nɛniʌ | | | McElhanon and Voorhoeve (1970) | straight |
| 193853 | Nend | irɨwɨr | | | Z'graggen (1980) | straight |
| 157991 | Nekgini | mɛnʌ | | | McElhanon and Voorhoeve (1970) | straight |
| 158019 | Nek | dindim | | | McElhanon and Voorhoeve (1970) | straight |
| 158008 | Nankina | numʌŋi | | | McElhanon and Voorhoeve (1970) | straight |
| 125788 | Nake | turugu | | | Z'graggen (1980) | straight |
| 158018 | Nakame | didim | | | McElhanon and Voorhoeve (1970) | straight |
| 158036 | Nabak | tʌŋ | | | McElhanon and Voorhoeve (1970) | straight |
| 157975 | Muyu, South | kimka-mo | | | McElhanon and Voorhoeve (1970) | straight |
| 157974 | Muyu, North | topoŋ-mo | | | McElhanon and Voorhoeve (1970) | straight |
| 144598 | Musar | mbɛmbɛ | | | Z'graggen (1980) | straight |
| 193855 | Musak | poːtɨ | | | Z'graggen (1980) | straight |
| 125786 | Murupi | ibua | | | Z'graggen (1980) | straight |
| 157988 | Muratayak | utuktugum | | | McElhanon and Voorhoeve (1970) | straight |
| 125774 | Munit | tugu | | | Z'graggen (1980) | straight |
| 158021 | Mungkip | didimi | | | McElhanon and Voorhoeve (1970) | straight |
| 193846 | Mum | tʉtʉ | | | Z'graggen (1980) | straight |
| 259791 | Motu | maoro | | | Dutton (1970) | straight |
| 125789 | Mosimo | tumtumu | | | Z'graggen (1980) | straight |
| 193850 | Moresada | tətə- | | | Z'graggen (1980) | straight |
| 158040 | Momare | dariʔ | | | McElhanon and Voorhoeve (1970) | straight |
| 144593 | Moere | kɛŋɛn | | | Z'graggen (1980) | straight |
| 181634 | Migum | gun | | | Z'graggen (1980) | straight |
| 158039 | Migabac | dɔndɔne | | | McElhanon and Voorhoeve (1970) | straight |
| 144590 | Miani | dogo | | | Z'graggen (1980) | straight |
| 158037 | Mesem | dʌndʌǥʌtn | | | McElhanon and Voorhoeve (1970) | straight |
| 125796 | Mawan | korɔr | | | Z'graggen (1980) | straight |
| 144595 | Mawak | kingɛn | | | Z'graggen (1980) | straight |
| 144591 | Mauwake | kakɛna | | | Z'graggen (1980) | straight |
| 125798 | Matepi | korɔr̃ | | | Z'graggen (1980) | straight |
| 157985 | Marind (Gawir Dialect) | heda | | | McElhanon and Voorhoeve (1970) | straight |
| 259787 | Maria (Maranomu Dialect) | ˈbubuˈna | | | Dutton (1970) | straight |
| 259785 | Maria (Maiagolo Dialect) | aˈriri | | | Dutton (1970) | straight |
| 158046 | Mape (West Dialect) | fɔretiŋ | | | McElhanon and Voorhoeve (1970) | straight |
| 158045 | Mape (Naga Dialect) | dɔndɔŋ | | | McElhanon and Voorhoeve (1970) | straight |
| 158047 | Mape (East Dialect) | fɔretiŋ | | | McElhanon and Voorhoeve (1970) | straight |
| 157972 | Mandobo Atas | ndindip | | | McElhanon and Voorhoeve (1970) | straight |
| 158016 | Ma Manda | didimɛn | | | McElhanon and Voorhoeve (1970) | straight |
| 158011 | Mamaa | dinda | | | McElhanon and Voorhoeve (1970) | straight |
| 181650 | Male | tigini | | | Z'graggen (1980) | straight |
| 144583 | Malas | taŋɛn | | | Z'graggen (1980) | straight |
| 144587 | Mala | dokodoko | | | Z'graggen (1980) | straight |
| 86769 | Mailu (Island Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 86495 | Mailu (Ilai Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 87865 | Mailu (Geagea Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 87317 | Mailu (Domara Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 88139 | Mailu (Delebai Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 88413 | Mailu (Darava Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
| 87043 | Mailu (Borebo Dialect) | ʔoroʔoroni | | | Thomson (1975) | |
