| kdw | kone1241 | Koneraw | T,
Mombum | 37 |
| xop | kopa1248 | Kopar (Singarin Dialect) | R,
L,
Nor | 225 |
| xop | kopa1248 | Kopar | R,
L,
Nor | 102 |
| kpr | kora1294 | Korafe (Mokorua Dialect) | T,
G,
B,
N,
S,
C,
Gaena-Korafe | 83 |
| kpr | kora1294 | Korafe (Rabade Dialect) | T,
G,
B,
N,
S,
C,
Gaena-Korafe | 91 |
| kpr | kora1294 | Korafe | T,
G,
B,
N,
S,
C,
Gaena-Korafe | 52 |
| koz | kora1296 | Korak | T,
M,
S,
Kowan | 347 |
| kpq | koru1245 | Korapun-Sela | T,
M,
Eastern | 40 |
| khe | koro1312 | Korowai | T,
O,
A,
Korowai | 206 |
| kiq | kosa1251 | Kosare | K,
Kaure Proper | 98 |
| kqb | kova1243 | Kovai | T,
F,
H,
Kovai | 40 |
| xow | kowa1245 | Kowaki | T,
M,
C,
P,
Tiboran | 316 |
| kwh | kowi1239 | Kowiai | A,
M,
C,
South Bomberai | 8 |
| kgf | kube1244 | Kube | T,
F,
H,
Eastern | 194 |
| jko | kubo1242 | Kubo | T,
East Strickland | 248 |
| kvd | kira1248 | Kui (Kiramang Dialect) | T,
W,
T,
A,
Alor | 132 |
| kvd | kuii1253 | Kui | T,
W,
T,
A,
Alor | 118 |
| tpg | kula1280 | Kula | T,
W,
T,
Tanglapui | 129 |
| fait1240 | Kulsab | T,
M,
S,
+,
Eastern | 35 |
| kue | kuma1280 | Kuman | T,
C,
Chimbu | 258 |
| kuo | kumu1247 | Kumukio | T,
F,
H,
Western | 52 |
| kvg | kuni1265 | Kuni-Boazi (Boazi Dialect) | T,
M,
Boazi | 49 |
| kvg | kuni1265 | Kuni-Boazi | T,
M,
Boazi | 265 |
| kvg | kuni1265 | Kuni-Boazi (Kuini Dialect) | T,
M,
Boazi | 4 |
| pep | kunj1246 | Kunja (Peremka Dialect) | S,
M,
Tonda | 0 |
| kto | kuot1243 | Kuot | Language isolate | 293 |
| kjr | kuru1305 | Kurudu | A,
M,
C,
E,
S,
W,
C,
Y,
East | 41 |
| skm | saka1292 | Kutong (Sakam Dialect) | T,
F,
F,
Uruwa | 56 |
| kwe | nucl1595 | Kwerba | T,
G,
K,
Nuclear | 41 |
| kwe | nucl1595 | Kwerba (Airmati Dialect) | T,
G,
K,
Nuclear | 38 |
| kkb | kwer1264 | Kwerisa | L,
T,
East | 37 |
| kwt | kwes1245 | Kwesten | T,
O,
Tor | 43 |
| kmo | kwom1262 | Kwoma | S,
Nukuma | 92 |
| kyc | kyak1244 | Kyaka | T,
E,
Enga | 116 |
| kql | kyen1243 | Kyenele (Miyak Dialect) | Yuat | 98 |
| kql | kyen1243 | Kyenele (Kyaimbarang Dialect) | Yuat | 117 |
| tmu | foii1242 | Lau | L,
T,
Central | 38 |
| lvk | lavu1241 | Lavukaleve | Central Solomons | 211 |
| leq | lemb1266 | Lembena (Maibi Dialect) | T,
E,
Enga | 115 |
| leq | lemb1266 | Lembena | T,
E,
Enga | 114 |
| leq | lemb1266 | Lembena (Yariba Dialect) | T,
E,
Enga | 131 |
| lei | lemi1243 | Lemio | T,
M,
R,
Kabenau | 275 |
| grg | madi1261 | Madi | T,
F,
F,
Gusap-Mot | 57 |
| | Magɨ | T,
M,
S,
W,
Emuan | 85 |
| sks | maia1254 | Maia (Saki Dialect) | T,
M,
C,
P,
Kaukombaran | 357 |
| sks | maia1254 | Maia (Pila Dialect) | T,
M,
C,
P,
Kaukombaran | 361 |
| ayz | maib1239 | Mai Brat | Maybrat | 41 |
| mgu | dere1243 | Mailu (Delebai Dialect) | T,
S,
Mailuan | 273 |
| mgu | geag1239 | Mailu (Geagea Dialect) | T,
S,
Mailuan | 273 |
| mgu | ilai1239 | Mailu (Ilai Dialect) | T,
S,
Mailuan | 273 |
