| 123837 | Kein | geir | | | Z'graggen (1980) | moon |
| 4312 | Keoru-Ahia (Aheave Dialect) | popare | | | Brown (1973) | |
| 4102 | Keoru-Ahia | papare | | | Brown (1973) | |
| 6831 | Kerewo | bara | | | Wurm (1973) | |
| 179891 | Kesawai | ʌsi | | | Z'graggen (1980) | moon |
| 33649 | Ketengban | ware | | | Heeschen (1978) | |
| 33296 | Keuw | dyúutəә́n-yò | | | Kamholz (2012) | |
| 6418 | Kibiri | umeri | | | Wurm (1973) | |
| 237053 | Kire | kəniŋ | | | Foley (2005) | |
| 216750 | Kirikiri | tɔ | | | Clouse (1997) | |
| 216749 | Kirikiri (Faia Dialect) | tɔ | | | Clouse (1997) | |
| 77675 | Klon | ur | | | Baird (2008) | |
| 35135 | Klon (Halerman Dialect) | ur | | | Stokhof (1975) | |
| 35016 | Klon (Probur Dialect) | ur | | | Stokhof (1975) | |
| 142887 | Kobol | ɛwiŋam | | | Z'graggen (1980) | (moon) |
| 196142 | Kobon | rag+. | + | | Pawley (2013) | |
| 196141 | Kobon | rakön | + | | Pawley (2013) | |
| 163688 | Kobon | 'ɾ̥aɤʌn | | | Davies and Comrie (1985) | moon |
| 15345 | Koitabu | bata | moon | | Dutton (2010) | |
| 229619 | Kol | i̠qu | | | SIL (1962) | |
| 230608 | Kol | 'igu | | | SIL (1981) | |
| 90591 | Komba | kain | moon | | McElhanon (1967) | moon |
| 148888 | Komba (Ândâ River Dialect) | kâin | | | Southwell (1976) | moon |
| 148796 | Komba (Gwama River (North) Dialect) | oloŋgo | | | Southwell (1976) | moon |
| 148842 | Komba (Gwama River (South) Dialect) | kâin | | | Southwell (1976) | moon |
| 148934 | Komba (Puleng River Dialect) | laŋgep | | | Southwell (1976) | moon |
| 210824 | Komyandaret | ˈwɑɔh | | | Hughes (2009) | |
| 16606 | Konai | ʌgwɔ | | | Shaw (1986) | |
| 245364 | Kopar (Singarin Dialect) | 'kʰařɛp | | | SIL (1977) | |
| 235383 | Kopar | karep | | | Foley (2005) | |
| 236053 | Kopar | karep | | | Foley (2005) | |
| 28264 | Korafe | inua | | | Wilson (1969) | |
| 52082 | Korafe (Mokorua Dialect) | ya'βara | moon | | Smallhorn (2011) | |
| 52043 | Korafe (Rabade Dialect) | 'inua | moon | | Smallhorn (2011) | |
| 142873 | Korak | sike | | | Z'graggen (1980) | (moon) |
| 210622 | Korowai | Wæ'ʔɔ:l | | | Hughes (2009) | |
| 33803 | Kosare | paka | | | Heeschen (1978) | |
| 142882 | Kowaki | ʌhi | | | Z'graggen (1980) | (moon) |
| 90597 | Kube | komoŋ | moon | | McElhanon (1967) | moon |
| 5701 | Kubo | ogwa | | | Shaw (1973) | |
| 7173 | Kubo | ogwʌ | | | Shaw (1986) | |
| 36203 | Kui | ʔur | | | Stokhof (1975) | |
| 37725 | Kui (Kiramang Dialect) | ʔur | | | Stokhof (1975) | |
| 36437 | Kula | pilαw'akkα | | | Stokhof (1975) | |
| 32568 | Kuman | ba | | | Salisbury (1956) | |
| 820 | Kuman | ba | | | Trefry (1969) | |
| 28615 | Kuni-Boazi | lëveɑḳ | | | Voorhoeve (1970) | |
| 165935 | Kuot | uləŋ | (AN loan) | | Lindström (2008) | |
| 243817 | Kwoma | nowəka | | | Laycock (1968) | |
| 237649 | Kwoma | nɨwɨka | | | Foley (2005) | |
