| bon | tate1244 | Bine (Täti Dialect) | E,
Bine | 155 |
| bjr | binu1245 | Binumarien | N,
K,
K,
Tairora | 21 |
| bqq | biri1259 | Biritai | L,
T,
E,
Eritai-Obokuitai-Biritai | 248 |
| bnw | bisi1244 | Bisis | S,
S,
C,
Nuclear Central Sepik Hill | 123 |
| bir | biso1243 | Bisorio | N,
E,
E,
Outer Enga | 67 |
| bir | biso1243 | Bisorio (Iniai Dialect) | N,
E,
E,
Outer Enga | 94 |
| bwm | biwa1243 | Biwat | Y,
M,
Bun-Mundukumo | 363 |
| bpm | biyo1244 | Biyom | N,
M,
R,
Unclassified Rai Coast | 325 |
| beu | baka1276 | Blagar (Bakalang Dialect) | T,
A,
N,
W,
K,
B,
B,
Coastal Blagar | 120 |
| beu | lima1248 | Blagar (Limarahing On Pura Dialect) | T,
A,
N,
W,
K,
B,
B,
Coastal Blagar | 119 |
| beu | blag1240 | Blagar (Terewent Dialect) | T,
A,
N,
W,
K,
Blagaric | 117 |
| beu | blag1240 | Blagar (Retta On Pura Dialect) | T,
A,
N,
W,
K,
Blagaric | 123 |
| beu | apur1252 | Blagar (Apuri On Pura Dialect) | T,
A,
N,
W,
K,
B,
B,
Coastal Blagar | 128 |
| beu | blag1240 | Blagar (Retta On Ternate Dialect) | T,
A,
N,
W,
K,
Blagaric | 118 |
| bpw | bopa1235 | Bo | L,
W,
Iteri-Bo | 106 |
| boq | boga1247 | Bogaya | T,
Duna-Bogaya | 197 |
| bzf | boik1241 | Boikin | Ndu | 43 |
| bpg | bong1287 | Bonggo | A,
M,
E,
O,
W,
N,
S,
Sarmi | 15 |
| bpu | bong1291 | Bongu | N,
M,
R,
M,
L,
Coastal Minjim | 477 |
| bop | bonk1244 | Bonkiman | N,
F,
F,
Y,
Kewieng-Bonkiman-Nokopo | 3 |
| ksr | boro1279 | Borong | N,
F,
H,
W,
R,
P,
Kosorong-Burum-Mindik | 190 |
| bqs | bosn1248 | Bosmun | R,
L,
O,
Bosngun-Awar | 62 |
| buq | brem1238 | Brem | N,
M,
C,
G,
N,
Manep-Barem | 351 |
| ape | buki1249 | Bukiyip | N,
K,
A,
M,
Bukiyip-Abu | 36 |
| bfn | buna1278 | Buna | Timor-Alor-Pantar | 101 |
| bvn | buna1277 | Buna (Torricelli) | N,
Marienberg | 170 |
| bzu | burm1264 | Burmeso | E,
Burmeso | 39 |
| bry | buru1309 | Burui | N,
N,
S,
Burui-Gaikundi | 106 |
| asi | buru1308 | Buruwai | N,
A,
A,
Sabakor | 40 |
| bsm | busa1254 | Busami | A,
M,
E,
S,
C,
Y,
C,
C,
Serui-Busami | 10 |
