| kiw | arig1248 | Northeast Kiwai (Arigibi Dialect) | K,
Northeast Kiwai | 100 |
| kiw | giba1246 | Northeast Kiwai (Gibaio Dialect) | K,
Northeast Kiwai | 100 |
| nxu | kaur1271 | Narau | Kaure-Kosare | 12 |
| kiw | kope1239 | Northeast Kiwai (Gope Dialect) | K,
Northeast Kiwai | 101 |
| naf | naba1256 | Nabak | N,
F,
H,
W,
R,
Sankwep | 193 |
| mty | nabi1239 | Nabi | N,
W,
C,
Wapeic | 51 |
| nxx | nafr1241 | Nafri | S,
N,
Sentani-Nafri | 41 |
| nib | naka1264 | Nakame (Sikalan Dialect) | N,
F,
F,
E,
Boana | 119 |
| nib | naka1264 | Nakame (Sokan Dialect) | N,
F,
F,
E,
Boana | 119 |
| nib | naka1264 | Nakame (Munguleng Dialect) | N,
F,
F,
E,
Boana | 137 |
| nib | naka1264 | Nakame (Popof Dialect) | N,
F,
F,
E,
Boana | 128 |
| nib | naka1264 | Nakame (Wasin Dialect) | N,
F,
F,
E,
Boana | 119 |
| nib | naka1264 | Nakame | N,
F,
F,
E,
Boana | 52 |
| nib | naka1264 | Nakame (Gufin Dialect) | N,
F,
F,
E,
Boana | 77 |
| nib | naka1264 | Nakame (Dzenzen Dialect) | N,
F,
F,
E,
Boana | 123 |
| nkj | naka1265 | Nakai | N,
A,
A,
O,
O,
Tangko-Nakai | 215 |
| nbk | nake1240 | Nake | N,
M,
C,
M,
H,
Unclassified Hanseman | 370 |
| nlc | nalc1240 | Nalca | N,
M,
Western Mek | 41 |
| ncm | namb1293 | Nambu (Keraki Dialect) | Y,
M,
Nambu | 1 |
| ncm | namb1293 | Nambu (Parb Dialect) | Y,
M,
Nambu | 1 |
| nnm | nami1256 | Namia | S,
Yellow River | 90 |
| mxw | namo1246 | Namo | Y,
M,
N,
Namo-Len | 1 |
| nnk | nank1250 | Nankina | N,
F,
F,
Yupna | 59 |
| nqm | ndom1245 | Ndom | Kolopom | 44 |
| nec | nede1245 | Nedebang | T,
A,
N,
W,
Pantar | 122 |
| nkg | nekg1240 | Nekgini | N,
F,
F,
G,
Gira-Neko-Nekgini | 54 |
| nif | nekk1240 | Nek (Goambot Dialect) | N,
F,
F,
E,
B,
Nek-Nuk | 113 |
| nif | nekk1240 | Nek | N,
F,
F,
E,
B,
Nek-Nuk | 56 |
| nej | neko1240 | Neko | N,
F,
F,
G,
Gira-Neko-Nekgini | 33 |
| anh | nend1239 | Nend | N,
M,
K,
S,
S,
A,
G,
West Sogeram | 385 |
| nnf | ngai1241 | Ngaing | N,
F,
F,
G,
Unclassified Gusap-Mot | 55 |
| szb | ngal1298 | Ngalum | N,
A,
A,
O,
Ok | 33 |
| nud | ngal1300 | Ngala | Ndu | 41 |
| nis | nimi1240 | Nimi | N,
F,
F,
E,
Sauk-Nimi | 55 |
| niw | nimo1247 | Nimo | L,
W,
Nimo-Nakwi | 176 |
| niz | ning1273 | Ningil | N,
W,
C,
W,
Ningil-Yil | 41 |
| 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 |
| nir | nucl1633 | Nimboran | Nimboranic | 40 |
| noc | nukk1240 | Nuk (Tamben Dialect) | N,
F,
F,
E,
B,
Nek-Nuk | 112 |
| noc | nukk1240 | Nuk | N,
F,
F,
E,
B,
Nek-Nuk | 57 |
| noc | nukk1240 | Nuk (Tunam Dialect) | N,
F,
F,
E,
B,
Nek-Nuk | 111 |
| klt | nukn1238 | Nukna | N,
F,
F,
Uruwa | 54 |
| klt | nukn1238 | Nukna (Hamelengan Dialect) | N,
F,
F,
Uruwa | 54 |
| nop | numa1254 | Numanggang (Kawalang Dialect) | N,
F,
F,
E,
Boana | 74 |
| nop | numa1254 | Numanggang | N,
F,
F,
E,
Boana | 55 |
| nop | numa1254 | Numanggang (Tumung Dialect) | N,
F,
F,
E,
Boana | 80 |
| kiw | uram1241 | Northeast Kiwai (Urama Dialect) | K,
Northeast Kiwai | 99 |
| nce | yale1246 | Nagatiman | Isolate | 102 |
