| nucl1603 | Proto-Nuclear-Binandere | T,
G,
B,
Nuclear Binanderean | 124 |
| mrz | nucl1622 | Marind | A,
M,
Marindic | 40 |
| bbb | nucl1630 | Barai (South Dialect) | K,
B,
Barai-Namiae | 144 |
| bbb | nucl1630 | Barai (North Dialect) | K,
B,
Barai-Namiae | 152 |
| set | nucl1632 | Sentani | E,
S,
Sentani Proper | 49 |
| nir | nucl1633 | Nimboran | Nimboranic | 40 |
| skv | nucl1634 | Skou | S,
S,
N,
Skou | 126 |
| nucl1709 | Proto-Trans-New-Guinea | Trans-New Guinea | 360 |
| 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 (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 |
| numu1240 | Proto-Tibor-Omosa | T,
M,
C,
Pihom | 117 |
| numu1240 | Proto-Numugen | T,
M,
C,
P,
Numugenan | 59 |
| afz | obok1239 | Obokuitai | L,
T,
E,
Eritai-Obokuitai-Biritai | 262 |
| ocea1241 | Proto-Oceanic | A,
M,
C,
E,
O,
(Proto) | 311 |
| bhf | odia1239 | Odiai | Isolate | 88 |
| kkc | odoo1238 | Odoodee (Hesif Dialect) | East Strickland | 94 |
| kkc | odoo1238 | Odoodee (Kalamo Dialect) | East Strickland | 99 |
| eri | ogea1238 | Ogea | N,
M,
R,
Nuru | 346 |
| goi | oiba1238 | Gobasi (Oibae Dialect) | E,
K,
Gobasi | 100 |
| oia | oira1263 | Oirata | T,
E,
Fataluku-Oirata | 233 |
| okok1235 | Proto-Ok-Oksapmin | T,
Ok-Awyu | 124 |
| opm | oksa1245 | Oksapmin (Lower Dialect) | N,
A,
A,
Ok-Oksapmin | 95 |
| opm | oksa1245 | Oksapmin (Upper Dialect) | N,
A,
A,
Ok-Oksapmin | 30 |
| ong | oloo1241 | Olo | N,
W,
C,
W,
A,
Olo-Elkei | 46 |
| aom | omie1241 | Ömie | K,
Baraic | 160 |
| oni | onin1245 | Onin | A,
M,
T,
N,
Y,
Oninic | 10 |
| onn | onob1238 | Onabasulu | B,
Bosavi Watershed | 197 |
| ons | onoo1246 | Ono (Kip Dialect) | N,
F,
H,
E,
Kalasa | 59 |
| ons | onoo1246 | Ono (Zankoa Dialect) | N,
F,
H,
E,
Kalasa | 14 |
| ons | onoo1246 | Ono | N,
F,
H,
E,
Kalasa | 140 |
| ons | onoo1246 | Ono (Karako Dialect) | N,
F,
H,
E,
Kalasa | 12 |
| opo | opao1240 | Opao | E,
Western Eleman | 104 |
| orz | ormu1248 | Ormu | A,
M,
E,
O,
W,
N,
S,
Jayapura Bay | 21 |
| oro | orok1267 | Orokolo (Kaipi Dialect) | E,
Western Eleman | 113 |
| oro | orok1267 | Orokolo | E,
Western Eleman | 112 |
| okv | orok1269 | Orokaiva (Para Harava Dialect) | N,
G,
B,
N,
S,
Orokaivic | 80 |
| okv | orok1269 | Orokaiva (Kendata Dialect) | N,
G,
B,
N,
S,
Orokaivic | 87 |
| okv | orok1269 | Orokaiva (Sose Dialect) | N,
G,
B,
N,
S,
Orokaivic | 400 |
| okv | orok1269 | Orokaiva (Jegarata-Kakendetta Dialect) | N,
G,
B,
N,
S,
Orokaivic | 91 |
| okv | orok1269 | Orokaiva | N,
G,
B,
N,
S,
Orokaivic | 93 |
| okv | orok1269 | Orokaiva (Sairope Dialect) | N,
G,
B,
N,
S,
Orokaivic | 83 |
| okv | orok1269 | Proto-Orokaiva | T,
G,
B,
N,
S,
Orokaivan | 16 |
| okv | orok1269 | Orokaiva (Waseda Dialect) | N,
G,
B,
N,
S,
Orokaivic | 0 |
| okv | orok1269 | Orokaiva (Jegasa-Sarau Dialect) | N,
G,
B,
N,
S,
Orokaivic | 123 |
