| mfw | mula1254 | Mulaha | Kwalean | 150 |
| kqa | mumm1238 | Mum | N,
M,
K,
S,
S,
North Sogeram | 419 |
| mpv | mung1272 | Mungkip | N,
F,
F,
E,
Boana | 165 |
| mtc | muni1257 | Munit | N,
M,
C,
M,
Kokon | 379 |
| asx | mura1271 | Muratayak | N,
F,
F,
W,
Nuclear Warup | 52 |
| mqw | muru1273 | Murupi | N,
M,
C,
M,
H,
Wamas-Samosa-Murupi-Mosimo | 382 |
| mmq | musa1266 | Musak | N,
M,
K,
S,
S,
E,
Aisian | 343 |
| mmi | musa1265 | Musar | N,
M,
C,
G,
N,
K,
T,
Nuclear Tibor | 343 |
| kti | nort2916 | Muyu, North | N,
A,
A,
O,
O,
L,
Division A Lowland Ok | 102 |
| kts | sout2940 | Muyu, South | N,
A,
A,
O,
O,
L,
Division A Lowland Ok | 100 |
| naf | naba1256 | Nabak | N,
F,
H,
W,
R,
Sankwep | 193 |
| nkj | naka1265 | Nakai | N,
A,
A,
O,
O,
Tangko-Nakai | 215 |
| nib | naka1264 | Nakame (Popof Dialect) | N,
F,
F,
E,
Boana | 128 |
| nib | naka1264 | Nakame (Gufin Dialect) | N,
F,
F,
E,
Boana | 77 |
| nib | naka1264 | Nakame (Wasin Dialect) | N,
F,
F,
E,
Boana | 119 |
| nib | naka1264 | Nakame (Dzenzen Dialect) | N,
F,
F,
E,
Boana | 123 |
| nib | naka1264 | Nakame | N,
F,
F,
E,
Boana | 52 |
| nib | naka1264 | Nakame (Munguleng Dialect) | N,
F,
F,
E,
Boana | 137 |
| nib | naka1264 | Nakame (Sikalan Dialect) | N,
F,
F,
E,
Boana | 119 |
| nib | naka1264 | Nakame (Sokan Dialect) | N,
F,
F,
E,
Boana | 119 |
| nbk | nake1240 | Nake | N,
M,
C,
M,
H,
Unclassified Hanseman | 370 |
| nlc | nalc1240 | Nalca | N,
M,
Western Mek | 41 |
| nnk | nank1250 | Nankina | N,
F,
F,
Yupna | 59 |
| nqm | ndom1245 | Ndom | Kolopom | 44 |
| nec | nede1245 | Nedebang | T,
A,
N,
W,
Pantar | 122 |
| nif | nekk1240 | Nek | N,
F,
F,
E,
B,
Nek-Nuk | 56 |
| nif | nekk1240 | Nek (Goambot Dialect) | N,
F,
F,
E,
B,
Nek-Nuk | 113 |
| nkg | nekg1240 | Nekgini | N,
F,
F,
G,
Gira-Neko-Nekgini | 54 |
| nej | neko1240 | Neko | N,
F,
F,
G,
Gira-Neko-Nekgini | 33 |
| anh | nend1239 | Nend | N,
M,
K,
S,
S,
A,
G,
West Sogeram | 385 |
| net | nete1240 | Nete | N,
E,
E,
Outer Enga | 29 |
| nnf | ngai1241 | Ngaing | N,
F,
F,
G,
Unclassified Gusap-Mot | 55 |
| szb | ngal1298 | Ngalum | N,
A,
A,
O,
Ok | 33 |
| nis | nimi1240 | Nimi | N,
F,
F,
E,
Sauk-Nimi | 55 |
| nxr | ning1274 | Ninggerum | N,
A,
A,
O,
O,
Lowland Ok | 82 |
| gaw | nobo1238 | Nobonob | N,
M,
C,
M,
H,
Garuh-Foran | 402 |
| noh | nomu1240 | Nomu | N,
F,
H,
W,
C,
Dallman | 57 |
| kiw | kope1239 | Northeast Kiwai (Gope Dialect) | K,
Northeast Kiwai | 101 |
| kiw | arig1248 | Northeast Kiwai (Arigibi Dialect) | K,
Northeast Kiwai | 100 |
| kiw | giba1246 | Northeast Kiwai (Gibaio Dialect) | K,
Northeast Kiwai | 100 |
| kiw | uram1241 | Northeast Kiwai (Urama Dialect) | K,
Northeast Kiwai | 99 |
| noc | nukk1240 | Nuk | N,
F,
F,
E,
B,
Nek-Nuk | 57 |
| noc | nukk1240 | Nuk (Tunam Dialect) | N,
F,
F,
E,
B,
Nek-Nuk | 111 |
| noc | nukk1240 | Nuk (Tamben Dialect) | N,
F,
F,
E,
B,
Nek-Nuk | 112 |
| klt | nukn1238 | Nukna (Hamelengan Dialect) | N,
F,
F,
Uruwa | 54 |
| klt | nukn1238 | Nukna | N,
F,
F,
Uruwa | 54 |
| nop | numa1254 | Numanggang | N,
F,
F,
E,
Boana | 55 |
| nop | numa1254 | Numanggang (Tumung Dialect) | N,
F,
F,
E,
Boana | 80 |
| nop | numa1254 | Numanggang (Kawalang Dialect) | N,
F,
F,
E,
Boana | 74 |
| kkc | odoo1238 | Odoodee (Hesif Dialect) | East Strickland | 94 |
