| 196151 | Kobon | hɩb | + | | Pawley (2013) | |
| 140903 | Kobol | unim | | | Z'graggen (1980) | (name) |
| 34995 | Klon (Probur Dialect) | nɛn'ɩh | | | Stokhof (1975) | |
| 35114 | Klon (Halerman Dialect) | nɛn'ɩh | | | Stokhof (1975) | |
| 77664 | Klon | neq | | | Baird (2008) | |
| 221577 | Kirikiri (Faia Dialect) | taβoɾeʔ | | | Clouse (1997) | |
| 221578 | Kirikiri | kwa | | | Clouse (1997) | |
| 237184 | Kire | zin | | | Foley (2005) | |
| 157937 | Kinalakna | kpot | | | McElhanon and Voorhoeve (1970) | name |
| 19760 | Kimaghima | ne | | | Voorhoeve (1975) | |
| 6469 | Kibiri | aru | | | Wurm (1973) | |
| 33566 | Ketengban | si | | | Heeschen (1978) | |
| 177890 | Kesawai | weini | | | Z'graggen (1980) | name |
| 6881 | Kerewo | paena | | | Wurm (1973) | |
| 4153 | Keoru-Ahia | lare | | | Brown (1973) | |
| 4363 | Keoru-Ahia (Aheave Dialect) | lare | | | Brown (1973) | |
| 25914 | Kemtuik | siü | | | Voorhoeve (1975) | |
| 21845 | Kemberano | enadi | | | Voorhoeve (1975) | |
| 121648 | Kein | wani- | | | Z'graggen (1980) | name |
| 236869 | Kayan | wi | | | Foley (2005) | |
| 17514 | Kawacha | yavya | | | Lloyd (1973) | |
| 22573 | Kauwera | bukwin | | | Voorhoeve (1975) | |
| 19438 | Kaure | bəre | | | Voorhoeve (1975) | |
| 221589 | Kaure | blɛ | | | Clouse (1997) | |
| 29420 | Kaure | nokomne | | | Voorhoeve (1971) | |
| 157955 | Kâte (Wemo Dialect) | dzoŋe | | | McElhanon and Voorhoeve (1970) | name |
| 157954 | Kâte (Wâmora Dialect) | dzïŋo | | | McElhanon and Voorhoeve (1970) | name |
| 157953 | Kâte (Mâgobineng Dialect) | dzeŋo | | | McElhanon and Voorhoeve (1970) | name |
| 91170 | Kâte | dzâne- | (its) name | | McElhanon (1967) | (its) name |
| 16457 | Kasua | unũ | | | Shaw (1986) | |
| 23609 | Karon Dori | masom | | | Voorhoeve (1975) | |
| 34471 | Karon Dori | tasom | | | Miedema & Welling (1985) | |
| 121645 | Kare | seme- | | | Z'graggen (1980) | name |
| 21765 | Karas | in | | | Voorhoeve (1975) | |
| 224940 | Kapriman | ovas | | | Dye et al (1968) | |
| 19560 | Kapauri | witini | | | Voorhoeve (1975) | |
| 21050 | Kanum | iu | | | Voorhoeve (1975) | |
| 237182 | Kanggape | rigiaŋ | | | Foley (2005) | |
| 16557 | Kamula | hi | | | Shaw (1986) | |
| 27389 | Kamula | hi | | | Reesink (1976) | |
| 21364 | Kamoro | unata | | | Voorhoeve (1975) | |
| 157862 | Kamoro | u | | | McElhanon and Voorhoeve (1970) | name |
| 21404 | Kamberau | ura | | | Voorhoeve (1975) | |
| 32279 | Kambaira | abiqi | | | SIL () | |
| 1758 | Kamasa | nyanyaawo | | | Lloyd (1973) | |
| 73491 | Kamano | (ä)gí('a) | | | Scott (1978) | |
| 37939 | Kamang (Pido 2 Dialect) | nan'ey | | | Stokhof (1975) | |
| 38173 | Kamang (Pido 1 Dialect) | nαn'ey | | | Stokhof (1975) | |
| 38291 | Kamang (Letley Dialect) | nαn'α | | | Stokhof (1975) | |
| 38525 | Kamang (Langkuru Dialect) | nαn'ɛɛdɛ | | | Stokhof (1975) | |
