| kue | kuma1280 | Kuman | N,
C,
S,
N,
Kuman-Dom-Gunaa | 258 |
| kuo | kumu1247 | Kumukio | N,
F,
H,
W,
C,
D,
Kinalakna-Kumukio | 52 |
| kvg | kuni1265 | Kuni-Boazi | A,
M,
Boazi | 265 |
| kvg | kuni1265 | Kuni-Boazi (Kuini Dialect) | A,
M,
Boazi | 4 |
| kvg | kuni1265 | Kuni-Boazi (Boazi Dialect) | A,
M,
Boazi | 49 |
| kup | kuni1267 | Kunimaipa | Kunimaipan | 118 |
| pep | kunj1246 | Kunja (Peremka Dialect) | Y,
M,
T,
Eastern Tonda | 0 |
| kto | kuot1243 | Kuot | Language isolate | 293 |
| kjr | kuru1305 | Kurudu | A,
M,
E,
S,
C,
Y,
Eastern Yapen | 41 |
| skm | saka1292 | Kutong (Sakam Dialect) | N,
F,
F,
U,
Sakam-Som | 56 |
| kwe | nucl1595 | Kwerba | G,
K,
Kwerbaic | 41 |
| kwe | nucl1595 | Kwerba (Airmati Dialect) | G,
K,
Kwerbaic | 38 |
| kkb | kwer1264 | Kwerisa | L,
T,
E,
Doutai-Kai-Waritai | 37 |
| kwt | kwes1245 | Kwesten | T,
Tor | 43 |
| kmo | kwom1262 | Kwoma | S,
Nukuma | 92 |
| kyc | kyak1244 | Kyaka | N,
E,
Engan | 116 |
| kql | kyen1243 | Kyenele (Miyak Dialect) | Y,
Miyak-Bun-Biwat | 98 |
| kql | kyen1243 | Kyenele (Kyaimbarang Dialect) | Y,
Miyak-Bun-Biwat | 117 |
