| 29866 | Kuni-Boazi | ḳagius | | | Voorhoeve (1970) | |
| 754 | Kuman | dinduŋgua | | | Trefry (1969) | |
| 5731 | Kubo | biyeko | | | Shaw (1973) | |
| 7203 | Kubo | biekɔ | | | Shaw (1986) | |
| 91087 | Kube | gbaok gbaok | yellow | | McElhanon (1967) | yellow |
| 145652 | Kowaki | anib | | | Z'graggen (1980) | (yellow) |
| 210661 | Korowai | 'ʔə'wɑ: | | | Hughes (2009) | |
| 145644 | Korak | alikam | | | Z'graggen (1980) | (yellow) |
| 16636 | Konai | biye dʌgi | | | Shaw (1986) | |
| 210865 | Komyandaret | sɛːndɛˈbɔː | | | Hughes (2009) | |
| 148959 | Komba (Puleng River Dialect) | gelepŋâ | | | Southwell (1976) | yellow |
| 148865 | Komba (Gwama River (South) Dialect) | gimbâŋâ | | | Southwell (1976) | yellow |
| 148819 | Komba (Gwama River (North) Dialect) | gimbâŋâ | | | Southwell (1976) | yellow |
| 148912 | Komba (Ândâ River Dialect) | gimbâŋâ | | | Southwell (1976) | yellow |
| 91081 | Komba | gibaŋ gibaŋ | yellow | | McElhanon (1967) | yellow |
| 230678 | Kol | 'ka:ge: | | | SIL (1981) | |
| 196325 | Kobon | uhaɫin | + | | Pawley (2013) | |
| 145658 | Kobol | agwʌːb | | | Z'graggen (1980) | (yellow) |
| 145657 | Kobol | ʌsɔt | | | Z'graggen (1980) | (yellow) |
| 77636 | Klon | bgor | | | Baird (2008) | |
| 217876 | Kirikiri | bua-we | | | Clouse (1997) | |
| 6448 | Kibiri | ekeribare | | | Wurm (1973) | |
| 4132 | Keoru-Ahia | maea kairu | | | Brown (1973) | |
| 4342 | Keoru-Ahia (Aheave Dialect) | kairu | | | Brown (1973) | |
| 126935 | Kein | baida | | | Z'graggen (1980) | yellow |
| 17493 | Kawacha | korumja | | | Lloyd (1973) | |
| 29456 | Kaure | sambi | | | Voorhoeve (1971) | |
| 217887 | Kaure | kəli | | | Clouse (1997) | |
| 91086 | Kâte | bâŋeŋne | yellow | | McElhanon (1967) | yellow |
| 2037 | Kasua | kiara | | | Franklin and Voorhoeve (1973) | |
| 16436 | Kasua | eľiʌ | | | Shaw (1986) | |
| 126932 | Kare | kasʌna | | | Z'graggen (1980) | yellow |
| 225030 | Kapriman | wokwar | | | Dye et al (1968) | |
| 16536 | Kamula | wʌleni | | | Shaw (1986) | |
| 27367 | Kamula | waləlɛ | | | Reesink (1976) | |
| 74971 | Kamano | kaninkrú(ke') | | | Scott (1978) | |
| 16736 | Kaluli | wanalɔ | | | Shaw (1986) | |
| 3294 | Kaluli | wanalo | | | Franklin and Voorhoeve (1973) | |
| 195890 | Kalam | waln | | | Pawley (2013) | |
| 6211 | Kaki Ae | mela nano | | | Brown (1973) | |
| 261168 | Kaki Ae | nano | | | Strong (1911) | |
| 217882 | Kaiy | dɛbaɸɾu | | | Clouse (1997) | |
| 181227 | Jilim | toŋgrɛn | | | Z'graggen (1980) | yellow |
| 126938 | Isebe | žʌːni | | | Z'graggen (1980) | yellow |
| 193610 | Isabi | yam | | | Z'graggen (1980) | yellow |
| 81149 | Ipili | abua | | | Franklin (1975) | |
| 17184 | Ipiko | řakořako | | | Franklin (1973) | |
| 74980 | Inoke-Yate | kanaleti | | | Scott (1978) | |
| 74978 | Inoke-Yate | kile'yane | | | Scott (1978) | |
| 74979 | Inoke-Yate | uya'alene | | | Scott (1978) | |
