| 157029 | Kovai | amputi | | | McElhanon and Voorhoeve (1970) | star |
| 33834 | Kosare | ɛmɛ | | | Heeschen (1978) | |
| 210624 | Korowai | ɓɛ'l̪i:ɾ̥ | | | Hughes (2009) | |
| 143176 | Korak | guein | | | Z'graggen (1980) | star |
| 54472 | Korafe (Rabade Dialect) | da'mana | star | | Smallhorn (2011) | |
| 28265 | Korafe | damana | | | Wilson (1969) | |
| 236059 | Kopar | kinaŋ | | | Foley (2005) | |
| 235389 | Kopar | kinaŋ | | | Foley (2005) | |
| 245365 | Kopar (Singarin Dialect) | 'moain | | | SIL (1977) | |
| 240456 | Kopar (Singarin Dialect) | ˈmoain | | | Abbott (1985) | |
| 16607 | Konai | kwidihɔ | | | Shaw (1986) | |
| 210826 | Komyandaret | miˈnɔʔ | | | Hughes (2009) | |
| 148936 | Komba (Puleng River Dialect) | isâ | | | Southwell (1976) | star |
| 148844 | Komba (Gwama River (South) Dialect) | gururu | | | Southwell (1976) | star |
| 148798 | Komba (Gwama River (North) Dialect) | puut | | | Southwell (1976) | star |
| 148890 | Komba (Ândâ River Dialect) | saŋgelâk | | | Southwell (1976) | star |
| 157043 | Komba | saŋgelʌk | | | McElhanon and Voorhoeve (1970) | star |
| 90815 | Komba | segelak | star | | McElhanon (1967) | star |
| 229620 | Kol | ko̠pi | | | SIL (1962) | |
| 230609 | Kol | 'kopie | | | SIL (1981) | |
| 196242 | Kobon | gapɨ | + | | Pawley (2013) | |
| 163711 | Kobon | 'gaβɨ | | | Davies and Comrie (1985) | star |
| 143191 | Kobol | tu:nd | | | Z'graggen (1980) | star |
| 35076 | Klon (Probur Dialect) | ib- | | | Stokhof (1975) | |
| 35195 | Klon (Halerman Dialect) | ib- | | | Stokhof (1975) | |
| 77589 | Klon | qib | | | Baird (2008) | |
| 217015 | Kirikiri (Faia Dialect) | hɔɾa | | | Clouse (1997) | |
| 217016 | Kirikiri | ɸɔɾa | | | Clouse (1997) | |
| 237057 | Kire | kam | | | Foley (2005) | |
| 157034 | Kinalakna | isa | | | McElhanon and Voorhoeve (1970) | star |
| 6419 | Kibiri | oiri | | | Wurm (1973) | |
| 33372 | Keuw | póowákəә̀n-yô | | | Kamholz (2012) | |
| 33590 | Ketengban | kurye | | | Heeschen (1978) | |
| 33589 | Ketengban | guri | | | Heeschen (1978) | |
| 180203 | Kesawai | wanupe | | | Z'graggen (1980) | star |
| 6832 | Kerewo | huři | | | Wurm (1973) | |
| 4103 | Keoru-Ahia | ko'ou | | | Brown (1973) | |
| 4313 | Keoru-Ahia (Aheave Dialect) | kou | | | Brown (1973) | |
| 124190 | Kein | ur̃ɛb | | | Z'graggen (1980) | star |
| 236739 | Kayan | gwae | | | Foley (2005) | |
| 29252 | Kayagar | supkup | | | Voorhoeve (1971) | |
| 17464 | Kawacha | sɨngaamna | | | Lloyd (1973) | |
| 29437 | Kaure | olipapie | | | Voorhoeve (1971) | |
| 217027 | Kaure | matupaple | | | Clouse (1997) | |
| 157052 | Kâte (Wemo Dialect) | bɔpiŋ | | | McElhanon and Voorhoeve (1970) | star |
| 157051 | Kâte (Wâmora Dialect) | bɔbiŋ | | | McElhanon and Voorhoeve (1970) | star |
| 157050 | Kâte (Mâgobineng Dialect) | bɔbiŋ | | | McElhanon and Voorhoeve (1970) | star |
| 90820 | Kâte | bâpiŋ | star | | McElhanon (1967) | star |
| 16407 | Kasua | yɛpisini | | | Shaw (1986) | |
| 2008 | Kasua | samisara | | | Franklin and Voorhoeve (1973) | |
