| ino | inok1238 | Inoke-Yate | N,
K,
G,
N,
S,
Kamano-Yagaria | 252 |
| ipo | ipik1244 | Ipiko | A,
Inland Gulf of Papua | 113 |
| ipi | ipil1240 | Ipili | N,
E,
Engan | 96 |
| isa | isab1240 | Isabi | N,
K,
G,
Unclassified Goroka | 282 |
| igo | iseb1246 | Isebe | N,
M,
C,
M,
G,
Panim-Isebe-Bau | 350 |
| mgu | isla1273 | Mailu (Island Dialect) | M,
Mailu | 273 |
| nca | iyoo1238 | Iyo | N,
F,
F,
G,
Ufim-Rawa-Nahu | 51 |
| jil | jili1241 | Jilim | N,
M,
R,
M,
Upper Minjim | 331 |
| klz | kabo1247 | Kabola (Aimoli Dialect) | T,
A,
N,
W,
West Alor | 125 |
| klz | kabo1247 | Kabola (Hamap Dialect) | T,
A,
N,
W,
West Alor | 120 |
| kpu | kafo1240 | Kafoa | T,
A,
Nuclear Alor-Pantar | 117 |
| kain1273 | Proto-Kainantu-Goroka | Nuclear Trans New Guinea | 1 |
| kain1274 | Proto-Kainantu | N,
Kainantu-Goroka | 1 |
| kain1274 | Proto-Eastern | N,
Kainantu-Goroka | 48 |
| kzm | kais1235 | Kais | South Bird's Head Family | 40 |
| tbd | kaki1249 | Kaki Ae | T,
E,
Tate | 254 |
| kmh | kala1397 | Kalam | N,
M,
K,
K,
Etp-Ti Kalam | 381 |
| lev | kalo1261 | Western Pantar (Kalondama Dialect) | T,
W,
T,
A,
Pantar | 119 |
| bco | kalu1248 | Kaluli | B,
B,
Kaluli-Sunia | 200 |
| bco | kalu1248 | Kaluli (Bosavi Dialect) | B,
B,
Kaluli-Sunia | 35 |
| klp | kama1360 | Kamasa | A,
N,
W,
Kamasa-Susuami | 99 |
| woi | kama1365 | Kamang (Langkuru Dialect) | T,
A,
N,
C,
Abuic | 121 |
| woi | kama1365 | Kamang (Letley Dialect) | T,
A,
N,
C,
Abuic | 122 |
| woi | kama1365 | Kamang | T,
A,
N,
C,
Abuic | 126 |
| woi | kama1365 | Kamang (Pido 2 Dialect) | T,
A,
N,
C,
Abuic | 123 |
| woi | kama1365 | Kamang (Pido 1 Dialect) | T,
A,
N,
C,
Abuic | 127 |
| woi | kama1365 | Kamang (Kolomane Dialect) | T,
A,
N,
C,
Abuic | 120 |
| kbq | kama1370 | Kamano | N,
K,
G,
N,
S,
Kamano-Yagaria | 192 |
| irx | kamb1302 | Kamberau | N,
A,
A,
Sabakor | 40 |
| kyy | kamb1303 | Kambaira | N,
K,
K,
Unclassified Kainantu | 98 |
| kgq | kamo1255 | Kamoro | N,
A,
Asmat-Kamoro | 94 |
| xla | kamu1260 | Kamula | Kamula-Elevala | 205 |
| kgv | kara1499 | Karas | West Bomberai | 40 |
| kmf | kare1341 | Kare | N,
M,
C,
Mabuso | 375 |
| xod | kasu1243 | Kokoda (Kasuweri Dialect) | S,
E,
Kokoda | 38 |
| khs | kasu1251 | Kasua | B,
Bosavi Watershed | 188 |
| kmg | kate1253 | Kâte | N,
F,
H,
E,
T,
H,
Kate-Mape | 140 |
| kauk1240 | Proto-Kaukombar | N,
M,
C,
G,
Northern Adelbert | 17 |
| kcb | kawa1276 | Kawacha | A,
N,
Wojokesic | 106 |
| kyt | kaya1328 | Kayagar | K,
Kaygir-Tamagario | 128 |
| bmh | kein1239 | Kein | N,
M,
C,
M,
Kokon | 352 |
| kyo | kelo1247 | Klon | T,
A,
N,
West Alor-Straits-Pantar | 284 |
| bzp | kemb1235 | Kemberano | S,
E,
Kemberanic | 40 |
| xeu | keor1235 | Keoru-Ahia | E,
Western Eleman | 103 |
| kxz | kere1286 | Kerewo | K,
Turama-Kerewo | 101 |
| xes | kesa1244 | Kesawai | N,
M,
R,
E,
Kesawai-Sausi | 307 |
| xte | kete1254 | Ketengban | N,
M,
Eastern Mek | 102 |
| yut | kewi1240 | Yopno (Kewieng Dialect) | T,
F,
F,
Yupna | 59 |
| prm | kibi1239 | Kibiri | T,
Kiwaian | 101 |
| kig | kima1246 | Kimaghima | K,
Kimaama-Riantana | 45 |
