| kmx | wabo1241 | Waboda | T,
Kiwaian | 167 |
| wbb | wabo1240 | Wabo | A,
M,
C,
E,
S,
W,
C,
Y,
East | 37 |
| usu | uyaa1238 | Uya | T,
M,
R,
Nuru | 350 |
| utu | utuu1240 | Utu | T,
M,
C,
Hanseman | 359 |
| omo | utar1238 | Utarmbung | T,
M,
S,
J,
Osum | 338 |
| ulf | usku1243 | Usku | Unclassified | 116 |
| wnu | usan1239 | Usan | T,
M,
C,
P,
Numugenan | 345 |
| urn | urua1244 | Uruangnirin | A,
M,
C,
North Bomberai | 4 |
| uri | urim1252 | Urim | T,
Urim | 46 |
| uvh | urii1240 | Uri | T,
F,
F,
Erap | 53 |
| uvh | urii1240 | Uri (Sintogoro Dialect) | T,
F,
F,
Erap | 89 |
| uvh | urii1240 | Uri (Siara Dialect) | T,
F,
F,
Erap | 90 |
| urg | urig1240 | Urigina | T,
M,
R,
Peka | 354 |
| urt | urat1244 | Urat | T,
W,
Urat | 40 |
| uro | urap1240 | Ura | E,
Baining | 505 |
| kiw | uram1241 | Northeast Kiwai (Urama Dialect) | T,
Kiwaian | 99 |
| dna | uppe1430 | Dani, Upper Grand Valley | T,
W,
D,
Dani Proper | 109 |
| mtg | unaa1239 | Una | T,
M,
Eastern | 12 |
| gdr | umee1243 | Wipi (Ume Dialect) | Eastern Trans-Fly | 97 |
| ukg | ukur1240 | Ukuriguma | T,
M,
C,
P,
Numugenan | 354 |
| ufi | ufim1240 | Ufim | T,
F,
F,
Gusap-Mot | 51 |
| mds | uder1239 | Maria (Uderi Dialect) | T,
S,
Manubaran | 179 |
| ksj | uare1241 | Uare | T,
S,
Kwalean | 421 |
| trt | tung1293 | Tunggare | East Geelvink Bay | 40 |
| iou | tuma1250 | Tuma-Irumu (Irumu Dialect) | T,
F,
F,
Wantoat | 52 |
| lev | tuba1277 | Western Pantar (Mauta Tubal Dialect) | T,
W,
T,
A,
Pantar | 118 |
| kvz | tsak1250 | Tsaukambo | T,
O,
O,
Ngalum | 209 |
| ttn | towe1240 | Towei | P,
Western | 36 |
| tqu | touo1238 | Mbaniata | Central Solomons | 242 |
| tei | torr1259 | Torricelli | T,
K,
Kombio | 39 |
| tpi | tokp1240 | Tok Pisin | C,
E,
Pacific | 128 |
| zuh | toka1244 | Tokano | T,
K,
G,
Gahuku-Benabena | 160 |
| tlg | tofa1246 | Tofanma | Unclassified | 119 |
| tbv | tobo1251 | Tobo | T,
F,
H,
Western | 189 |
| tti | toba1266 | Tobati | A,
M,
C,
E,
O,
W,
N,
S,
Jayapura Bay | 21 |
| tqo | toar1246 | Toaripi | T,
E,
N,
E. | 114 |
| tim | timb1251 | Timbe | T,
F,
H,
Western | 197 |
| tif | tifa1245 | Tifal | T,
O,
O,
Mountain | 152 |
| tvo | tido1248 | Tidore | W,
N,
Ternate-Tidore | 214 |
| tlf | tele1256 | Telefol | T,
O,
O,
Mountain | 187 |
| twe | teiw1235 | Teiwa (Sargang Dialect) | T,
W,
T,
A,
Pantar | 123 |
| kps | tehi1237 | Tehit | W,
West Bird's Head | 39 |
| ppo | tebe1252 | Tebera | T,
Teberan | 99 |
| tbp | tawo1244 | Diebroud (Dabra Dialect) | L,
East | 37 |
| tbp | tawo1244 | Diebroud (Taworta Dialect) | L,
East | 17 |
| tya | tauy1241 | Tauya | T,
M,
R,
Biyom-Tauya | 339 |
| tad | taus1252 | Tause | L,
T,
West | 203 |
| ttd | taua1242 | Tauade | T,
S,
G,
Kunimaipa | 183 |
| bon | tate1244 | Bine (Täti Dialect) | Eastern Trans-Fly | 155 |
| tpf | tarp1240 | Tarpia | A,
M,
C,
E,
O,
W,
N,
S,
Sarmi | 25 |
