| opo | opao1240 | Opao | T,
E,
N,
W. | 104 |
| ons | onoo1246 | Ono (Zankoa Dialect) | T,
F,
H,
Western | 14 |
| ons | onoo1246 | Ono (Karako Dialect) | T,
F,
H,
Western | 12 |
| ons | onoo1246 | Ono | T,
F,
H,
Western | 140 |
| ons | onoo1246 | Ono (Kip Dialect) | T,
F,
H,
Western | 59 |
| oni | onin1245 | Onin | A,
M,
C,
North Bomberai | 10 |
| oin | ineb1235 | One, Inebu | T,
W,
One | 46 |
| onn | onob1238 | Onabasulu | T,
Bosavi | 197 |
| aom | omie1241 | Ömie | T,
S,
K,
Baraic | 160 |
| jmw | mouw1234 | Omati | T,
T,
Turama-Omatian | 97 |
| ong | oloo1241 | Olo | T,
W,
Wapei | 46 |
| opm | oksa1245 | Oksapmin (Upper Dialect) | T,
Oksapmin | 30 |
| opm | oksa1245 | Oksapmin (Lower Dialect) | T,
Oksapmin | 95 |
| oia | oira1263 | Oirata | T,
W,
E,
Fataluku-Oirata | 233 |
| eri | ogea1238 | Ogea | T,
M,
R,
Nuru | 346 |
| kkc | odoo1238 | Odoodee (Hesif Dialect) | T,
East Strickland | 94 |
| kkc | odoo1238 | Odoodee (Kalamo Dialect) | T,
East Strickland | 99 |
| bhf | odia1239 | Odiai | Isolate | 88 |
| afz | obok1239 | Obokuitai | L,
T,
East | 262 |
| nop | numa1254 | Numanggang | T,
F,
F,
Erap | 55 |
| nop | numa1254 | Numanggang (Kawalang Dialect) | T,
F,
F,
Erap | 74 |
| nop | numa1254 | Numanggang (Tumung Dialect) | T,
F,
F,
Erap | 80 |
| klt | nukn1238 | Nukna (Hamelengan Dialect) | T,
F,
F,
Uruwa | 54 |
| klt | nukn1238 | Nukna | T,
F,
F,
Uruwa | 54 |
| noc | nukk1240 | Nuk (Tunam Dialect) | T,
F,
F,
Erap | 111 |
| noc | nukk1240 | Nuk (Tamben Dialect) | T,
F,
F,
Erap | 112 |
| noc | nukk1240 | Nuk | T,
F,
F,
Erap | 57 |
| kiw | arig1248 | Northeast Kiwai (Arigibi Dialect) | T,
Kiwaian | 100 |
| kiw | giba1246 | Northeast Kiwai (Gibaio Dialect) | T,
Kiwaian | 100 |
| kiw | uram1241 | Northeast Kiwai (Urama Dialect) | T,
Kiwaian | 99 |
| kiw | kope1239 | Northeast Kiwai (Gope Dialect) | T,
Kiwaian | 101 |
| noh | nomu1240 | Nomu | T,
F,
H,
Western | 57 |
| gaw | nobo1238 | Nobonob | T,
M,
C,
Hanseman | 402 |
| niz | ning1273 | Ningil | T,
W,
Wapei | 41 |
| nxr | ning1274 | Ninggerum | T,
O,
O,
Lowland | 82 |
| niw | nimo1247 | Nimo | Left May | 176 |
| nis | nimi1240 | Nimi | T,
F,
F,
Erap | 55 |
| nir | nucl1633 | Nimboran | Nimboran | 40 |
| szb | ngal1298 | Ngalum | T,
O,
O,
Ngalum | 33 |
| nud | ngal1300 | Ngala | S,
Ndu | 41 |
| nnf | ngai1241 | Ngaing | T,
F,
F,
Gusap-Mot | 55 |
| anh | nend1239 | Nend | T,
M,
S,
+,
Western | 385 |
| nej | neko1240 | Neko | T,
F,
F,
Gusap-Mot | 33 |
| nkg | nekg1240 | Nekgini | T,
F,
F,
Gusap-Mot | 54 |
| nif | nekk1240 | Nek (Goambot Dialect) | T,
F,
F,
Erap | 113 |
| nif | nekk1240 | Nek | T,
F,
F,
Erap | 56 |
| nec | nede1245 | Nedebang | T,
W,
T,
A,
Pantar | 122 |
| nqm | ndom1245 | Ndom | T,
Kolopom | 44 |
| nxu | kaur1271 | Narau | K,
Kaure Proper | 12 |
| nnk | nank1250 | Nankina | T,
F,
F,
Yupna | 59 |
