| 19756 | Kimaghima | no | | | Voorhoeve (1975) | |
| 159719 | Kinalakna | no | | | McElhanon and Voorhoeve (1970) | i |
| 237267 | Kire | gu | | | Foley (2005) | |
| 221062 | Kirikiri | a | | | Clouse (1997) | |
| 221061 | Kirikiri (Faia Dialect) | ɛ | | | Clouse (1997) | |
| 77582 | Klon | nan | | | Baird (2008) | |
| 139009 | Kobol | ɛ-ŋ | | | Z'graggen (1980) | first person singular |
| 196119 | Kobon | yadeke | + | | Pawley (2013) | |
| 196118 | Kobon | ad | + | | Pawley (2013) | |
| 196117 | Kobon | yad | + | | Pawley (2013) | |
| 165369 | Kobon | jantʰ | | | Davies and Comrie (1985) | I |
| 15360 | Koitabu | da | I | | Dutton (2010) | |
| 22041 | Kokoda (Kasuweri Dialect) | neiga | | | Voorhoeve (1975) | |
| 22001 | Kokoda (Tarof Dialect) | neiga | | | Voorhoeve (1975) | |
| 230722 | Kol | io | | | SIL (1981) | |
| 159728 | Komba | nʌ | | | McElhanon and Voorhoeve (1970) | i |
| 90451 | Komba | nâ | I | | McElhanon (1967) | I |
| 148334 | Komba (Ândâ River Dialect) | nâ | | | Southwell (1976) | i |
| 148333 | Komba (Gwama River (North) Dialect) | nâ | | | Southwell (1976) | i |
| 148336 | Komba (Gwama River (South) Dialect) | nâ | | | Southwell (1976) | i |
| 148335 | Komba (Puleng River Dialect) | nâ | | | Southwell (1976) | i |
| 16581 | Konai | ã | | | Shaw (1986) | |
| 22241 | Konda | neŋgi | | | Voorhoeve (1975) | |
| 21280 | Koneraw | no | | | Voorhoeve (1975) | |
| 240521 | Kopar (Singarin Dialect) | ˈma | | | Abbott (1985) | |
| 245447 | Kopar (Singarin Dialect) | 'ma | | | SIL (1977) | |
| 236290 | Kopar | ma | | | Foley (2005) | |
| 159745 | Korafe | na | | | McElhanon and Voorhoeve (1970) | i |
| 138995 | Korak | ŋa-m | | | Z'graggen (1980) | first person singular |
| 19921 | Korapun-Sela | na | | | Voorhoeve (1975) | |
| 33792 | Kosare | nõ | | | Heeschen (1978) | |
| 139004 | Kowaki | yɛ | | | Z'graggen (1980) | first person singular |
| 159725 | Kube | ni | | | McElhanon and Voorhoeve (1970) | i |
| 90457 | Kube | ni | I | | McElhanon (1967) | I |
| 5676 | Kubo | a̧ | | | Shaw (1973) | |
| 159659 | Kubo | ã | | | McElhanon and Voorhoeve (1970) | i |
| 7148 | Kubo | ã | | | Shaw (1986) | |
| 809 | Kuman | na | | | Trefry (1969) | |
| 159720 | Kumukio | ni | | | McElhanon and Voorhoeve (1970) | i |
| 21961 | Kuni-Boazi | no | | | Voorhoeve (1975) | |
| 28595 | Kuni-Boazi | no | | | Voorhoeve (1970) | |
| 159671 | Kuni-Boazi (Boazi Dialect) | no | | | McElhanon and Voorhoeve (1970) | i |
| 166074 | Kuot | turuo | | | Lindström (2008) | |
| 165879 | Kuot | tuo | | | Lindström (2008) | |
| 24942 | Kurudu | aya | | | Voorhoeve (1975) | |
| 159689 | Kutong (Sakam Dialect) | nʌk | | | McElhanon and Voorhoeve (1970) | i |
| 22527 | Kwerba | co | | | Voorhoeve (1975) | |
| 22611 | Kwerba (Airmati Dialect) | co | | | Voorhoeve (1975) | |
| 23096 | Kwerisa | ʔi | | | Voorhoeve (1975) | |
| 22892 | Kwesten | ana | | | Voorhoeve (1975) | |
