| wnb | wana1269 | Wanambre | T,
M,
C,
P,
Tiboran | 338 |
| wnc | yaga1259 | Wantoat (Yagawak Dialect) | T,
F,
F,
Wantoat | 56 |
| wnc | want1252 | Wantoat | T,
F,
F,
Wantoat | 55 |
| wnc | bamm1240 | Wantoat (Bam Dialect) | T,
F,
F,
Wantoat | 44 |
| wnc | wapu1240 | Wantoat (Leron Dialect) | T,
F,
F,
Wantoat | 38 |
| wnc | want1252 | Wantoat (Saseng Dialect) | T,
F,
F,
Wantoat | 39 |
| wng | wang1299 | Wanggom | T,
O,
A,
Dumut | 209 |
| wnp | wana1268 | Wanap | T,
W,
Palei | 46 |
| wnu | usan1239 | Usan | T,
M,
C,
P,
Numugenan | 345 |
| wod | wola1243 | Wolani | T,
W,
Wissel Lakes | 32 |
| wod | wola1243 | Wolani (Upper Mbijandoga Dialect) | T,
W,
Wissel Lakes | 74 |
| wog | woga1249 | Wogamusin | S,
Wogamusin-Chenapian | 78 |
| woi | kama1365 | Kamang (Pido 1 Dialect) | T,
A,
N,
C,
Abuic | 127 |
| woi | kama1365 | Kamang (Langkuru Dialect) | T,
A,
N,
C,
Abuic | 121 |
| woi | kama1365 | Kamang (Pido 2 Dialect) | T,
A,
N,
C,
Abuic | 123 |
| woi | kama1365 | Kamang (Letley Dialect) | T,
A,
N,
C,
Abuic | 122 |
| woi | kama1365 | Kamang (Kolomane Dialect) | T,
A,
N,
C,
Abuic | 120 |
| woi | kama1365 | Kamang | T,
A,
N,
C,
Abuic | 126 |
| wrp | waro1242 | Waropen | A,
M,
C,
E,
S,
W,
C,
Waropen | 56 |
| wrs | wari1266 | Waris | B,
Waris | 144 |
| wsa | ware1253 | Warembori | Lower Mamberamo | 39 |
| wsk | wask1241 | Waskia | T,
M,
S,
Kowan | 352 |
| wtf | dump1243 | Watiwa | T,
M,
R,
Evapia | 322 |
| wul | sili1249 | Silimo (South Ngalik Dialect) | T,
W,
D,
Ngalik | 19 |
| wut | wutu1244 | Wutung | S,
S,
N,
Eastern Skou | 30 |
| xau | kauw1242 | Kauwera | G,
K,
Kwerbaic | 40 |
| xes | kesa1244 | Kesawai | N,
M,
R,
E,
Kesawai-Sausi | 307 |
| xeu | keor1235 | Keoru-Ahia | E,
Western Eleman | 103 |
| xeu | ahea1235 | Keoru-Ahia (Aheave Dialect) | E,
W,
Keoru-Ahia | 104 |
| xla | kamu1260 | Kamula | Kamula-Elevala | 205 |
| xod | koko1265 | Kokoda (Tarof Dialect) | S,
East South Bird's Head | 38 |
| xod | kasu1243 | Kokoda (Kasuweri Dialect) | S,
E,
Kokoda | 38 |
| xop | kopa1248 | Kopar (Singarin Dialect) | L,
Nor | 225 |
| xop | kopa1248 | Kopar | L,
Nor | 102 |
| xow | kowa1245 | Kowaki | N,
M,
C,
G,
N,
K,
T,
Nuclear Tibor | 316 |
| xrw | kara1495 | Karawa | S,
R,
Pouye-Karawa | 46 |
| xse | semp1241 | Sempan | T,
A,
Sempan | 93 |
| xsp | silo1240 | Silopi | T,
M,
C,
Hanseman | 354 |
| xte | kete1254 | Ketengban | N,
M,
Eastern Mek | 102 |
| yac | pass1247 | Yali, Pass Valley | T,
W,
D,
Ngalik | 37 |
| ybm | yabe1255 | Yaben | T,
M,
C,
P,
Numugenan | 364 |
| ybo | yabo1240 | Yabong | T,
M,
R,
Yaganon | 344 |
| ybx | yawi1238 | Yawiyo (Wosawari Dialect) | S,
L,
Walio | 96 |
| yby | yawe1241 | Yaweyuha | T,
K,
G,
Siane | 377 |
| ydk | yoid1240 | Yoidik | T,
M,
C,
Hanseman | 351 |
| yee | yima1243 | Yimas | R,
L,
Karawari | 251 |
| yet | yetf1238 | Yetfa | Unclassified | 111 |
| ygr | huaa1250 | Yagaria (Hua Dialect) | T,
K,
G,
Kamano-Yagaria | 92 |
| ygr | yaga1260 | Yagaria | T,
K,
G,
Kamano-Yagaria | 229 |
| ygr | hira1246 | Yagaria (Hira Dialect) | T,
K,
G,
Kamano-Yagaria | 283 |
