| bwm | biwa1243 | Biwat | Y,
M,
Bun-Mundukumo | 363 |
| bwk | bauw1240 | Bauwaki | M,
Bauwakic | 134 |
| bvz | bauz1241 | Bauzi | Geelvink Bay | 303 |
| bvn | buna1277 | Buna (Torricelli) | N,
Marienberg | 170 |
| buq | brem1238 | Barem | N,
M,
C,
G,
N,
Manep-Barem | 21 |
| buq | brem1238 | Brem | N,
M,
C,
G,
N,
Manep-Barem | 351 |
| bsm | busa1254 | Busami | A,
M,
E,
S,
C,
Y,
C,
C,
Serui-Busami | 10 |
| bry | buru1309 | Burui | N,
N,
S,
Burui-Gaikundi | 106 |
| brp | bara1375 | Barapasi | G,
Barapasi-Sauri-Kofei | 38 |
| bqs | bosn1248 | Bosmun | R,
L,
O,
Bosngun-Awar | 62 |
| bqq | biri1259 | Biritai | L,
T,
E,
Eritai-Obokuitai-Biritai | 248 |
| bql | bila1257 | Bilakura | N,
M,
C,
G,
N,
N,
Karian-Usan-Yaben | 345 |
| bpw | bopa1235 | Bo | L,
W,
Iteri-Bo | 106 |
| bpv | bian1251 | Marind, Bian | A,
M,
Marindic | 42 |
| bpu | bong1291 | Bongu | N,
M,
R,
M,
L,
Coastal Minjim | 477 |
| bpp | kaur1271 | Kaure | Kaure-Kosare | 327 |
| bpm | biyo1244 | Biyom | N,
M,
R,
Unclassified Rai Coast | 325 |
| bpi | bagu1252 | Bagupi | N,
M,
C,
M,
H,
Silopic | 351 |
| bpg | bong1287 | Bonggo | A,
M,
E,
O,
W,
N,
S,
Sarmi | 15 |
| boq | boga1247 | Bogaya | T,
Duna-Bogaya | 197 |
| bop | bonk1244 | Bonkiman | N,
F,
F,
Y,
Kewieng-Bonkiman-Nokopo | 3 |
| bon | kuni1264 | Bine (Kunini Dialect) | E,
Bine | 168 |
| bon | irup1239 | Bine (Irupi Dialect) | E,
Bine | 153 |
| bon | boze1239 | Bine (Boze Dialect) | E,
Bine | 158 |
| bon | boze1239 | Bine (Giringarede Dialect) | E,
Bine | 160 |
| bon | sebe1243 | Bine (Sebe Dialect) | E,
Bine | 152 |
| bon | irup1239 | Bine (Drageli Dialect) | E,
Bine | 147 |
| bon | soga1243 | Bine (Sogal Dialect) | E,
Bine | 154 |
| bon | tate1244 | Bine (Täti Dialect) | E,
Bine | 155 |
| bon | masi1270 | Bine (Masingle Dialect) | E,
Bine | 152 |
| bon | bine1240 | Bine | Eastern Trans-Fly | 2 |
| boj | anja1238 | Anjam | N,
M,
R,
M,
L,
Coastal Minjim | 340 |
| boj | anja1238 | Anjam (Lalok Dialect) | N,
M,
R,
M,
L,
Coastal Minjim | 79 |
| bnw | bisi1244 | Bisis | S,
S,
C,
Nuclear Central Sepik Hill | 123 |
| bnv | bone1255 | Beneraf | T,
T,
Coastal Tor | 37 |
| bmx | baim1245 | Baimak | N,
M,
C,
M,
H,
Garuh-Foran | 365 |
| bmu | buru1306 | Somba-Siawari (Burum Dialect) | T,
F,
H,
Western | 196 |
| bmu | buru1306 | Somba-Siawari (Mindik Dialect) | T,
F,
H,
Western | 196 |
| bmh | kein1239 | Kein | N,
M,
C,
M,
Kokon | 352 |
| blb | bilu1245 | Mbilua (Ndovele Dialect) | Central Solomons | 195 |
| blb | bilu1245 | Mbaniata (Lokuru Dialect) | Central Solomons | 205 |
| blb | bilu1245 | Mbilua | Central Solomons | 213 |
| bkl | beri1254 | Berik | T,
Tor | 238 |
| bjz | tafo1238 | Baruga (Tafota Dialect) | N,
G,
B,
N,
S,
C,
B,
Baruga | 625 |
| bjz | baru1269 | Proto-Baruga | N,
G,
B,
N,
S,
C,
Baruga-Doghoro | 15 |
| bjz | bare1274 | Baruga (Bareji Dialect) | N,
G,
B,
N,
S,
C,
B,
Baruga | 329 |
| bjz | mado1239 | Baruga (Mado Dialect) | N,
G,
B,
N,
S,
C,
B,
Baruga | 221 |
| bjz | baru1269 | Baruga | N,
G,
B,
N,
S,
C,
Baruga-Doghoro | 81 |
| bjr | binu1245 | Binumarien | N,
K,
K,
Tairora | 21 |
| bjh | bahi1254 | Bahinemo | S,
S,
C,
Bahinemic | 121 |
