| 320 | Mena | i boru | | | Franklin (1973) | |
| 4848 | Menya | quwɨqa | | | Lloyd (1973) | |
| 156107 | Mesem | sin | | | McElhanon and Voorhoeve (1970) | leaf |
| 91344 | Mesem | sin- | (its) leaf | | McElhanon (1967) | (its) leaf |
| 156029 | Mian | ãn | | | McElhanon and Voorhoeve (1970) | leaf |
| 156109 | Migabac | more | | | McElhanon and Voorhoeve (1970) | leaf |
| 218256 | Migabac | nekeŋine | | | SIL (1975) | |
| 218267 | Migabac | moleine | | | SIL (1975) | |
| 3117 | Minanibai | paho | | | Franklin (1973) | |
| 29581 | Molof | lai | | | Voorhoeve (1971) | |
| 156110 | Momare | me | | | McElhanon and Voorhoeve (1970) | leaf |
| 7299 | Moni (Kemandoga Dialect) | hoka | | | Larson & Larson (1972) | |
| 32355 | Morawa | sada | | | SIL (1973) | |
| 3536 | Morigi | paha | | | Wurm (1973) | |
| 258440 | Motu | lau | | | Dutton (1970) | leaf |
| 14884 | Mountain Koiari | vana | leaf | | Dutton (2010) | |
| 3434 | Mubami | debahai | | | Franklin (1973) | |
| 27648 | Mubami | bualɛ | | | Reesink (1976) | |
| 27649 | Mubami | bahai | | | Reesink (1976) | |
| 156091 | Mungkip | sɨsa | | | McElhanon and Voorhoeve (1970) | leaf |
| 156053 | Muratayak | gurʌk | | | McElhanon and Voorhoeve (1970) | leaf |
| 240565 | Murik (Karau Dialect) | ˈnabiřəkʰ | | | Abbott (1985) | |
| 240671 | Murik (Wagamut Dialect) | ˈnabiřukʰ | | | Abbott (1985) | |
| 236156 | Murik | nabirɨk | | | Foley (2005) | |
| 7860 | Murik | nabirɨk | | | Foley (1986) | |
| 235486 | Murik | nabirɨk | | | Foley (2005) | |
| 156025 | Muyu, North | ot | | | McElhanon and Voorhoeve (1970) | leaf |
| 156026 | Muyu, South | oo | | | McElhanon and Voorhoeve (1970) | leaf |
| 156106 | Nabak | sin | | | McElhanon and Voorhoeve (1970) | leaf |
| 91355 | Nabak | sin- | (its) leaf | | McElhanon (1967) | (its) leaf |
| 197788 | Nagatiman | ta:baʔ | | | Conrad and Dye (1975) | |
| 214018 | Nakai | kɔn | | | Hughes (2009) | |
| 156088 | Nakame | sap | | | McElhanon and Voorhoeve (1970) | leaf |
| 156073 | Nankina | tʌm | | | McElhanon and Voorhoeve (1970) | leaf |
| 38826 | Nedebang | w'αʔα | | | Stokhof (1975) | |
| 156089 | Nek | sap | | | McElhanon and Voorhoeve (1970) | leaf |
| 156059 | Nekgini | kɔmir | | | McElhanon and Voorhoeve (1970) | leaf |
| 156058 | Nekgini | sʌ | | | McElhanon and Voorhoeve (1970) | leaf |
| 156057 | Neko | sa | | | McElhanon and Voorhoeve (1970) | leaf |
| 156056 | Ngaing | mi | | | McElhanon and Voorhoeve (1970) | leaf |
| 156085 | Nimi | sese | | | McElhanon and Voorhoeve (1970) | leaf |
| 198224 | Nimo | asɔ | | | Conrad and Dye (1975) | |
| 246339 | Nimo | ʔau | | | SIL (1963) | |
| 156027 | Ninggerum | hoot | | | McElhanon and Voorhoeve (1970) | leaf |
| 156095 | Nomu | sewe | | | McElhanon and Voorhoeve (1970) | leaf |
| 17321 | Northeast Kiwai (Arigibi Dialect) | pʌ'ʔʌ́ | | | Wurm (1973) | |
| 31509 | Northeast Kiwai (Gibaio Dialect) | pʌ'há: | | | Wurm (1973) | |
| 3016 | Northeast Kiwai (Gope Dialect) | paha | | | Wurm (1973) | |
| 1032 | Northeast Kiwai (Urama Dialect) | paha | | | Wurm (1973) | |
| 156090 | Nuk | endzi | | | McElhanon and Voorhoeve (1970) | leaf |
