| 244487 | Karawa | kawuwi | | | Laycock (1968) | |
| 125278 | Kare | uyʌsi | | | Z'graggen (1980) | white |
| 16434 | Kasua | kuyʌ | | | Shaw (1986) | |
| 91058 | Kâte | kapŋ kapŋ | white | | McElhanon (1967) | white |
| 29454 | Kaure | wako | | | Voorhoeve (1971) | |
| 217676 | Kaure | waku | | | Clouse (1997) | |
| 17491 | Kawacha | wayaavara | | | Lloyd (1973) | |
| 29265 | Kayagar | koprap | | | Voorhoeve (1971) | |
| 125282 | Kein | ausia | | | Z'graggen (1980) | white |
| 4340 | Keoru-Ahia (Aheave Dialect) | ohu | | | Brown (1973) | |
| 4130 | Keoru-Ahia | maea houho | | | Brown (1973) | |
| 6859 | Kerewo | bohoboho | | | Wurm (1973) | |
| 181181 | Kesawai | ɛtanaw | | | Z'graggen (1980) | white |
| 33604 | Ketengban | korun | | | Heeschen (1978) | |
| 33423 | Keuw | kúmyáa-yò | | | Kamholz (2012) | |
| 6446 | Kibiri | banouni | | | Wurm (1973) | |
| 217665 | Kirikiri | kuɾa-we | | | Clouse (1997) | |
| 77698 | Klon | ayaal | | | Baird (2008) | |
| 77699 | Klon | aqayaal | | | Baird (2008) | |
| 35197 | Klon (Halerman Dialect) | 'aʔαyal | | | Stokhof (1975) | |
| 35078 | Klon (Probur Dialect) | αy'al | | | Stokhof (1975) | |
| 144146 | Kobol | oŋɔt | | | Z'graggen (1980) | (white) |
| 164861 | Kobon | ɾ̥untʰ | | | Davies and Comrie (1985) | white |
| 196313 | Kobon | koŋ | + | | Pawley (2013) | |
| 196314 | Kobon | tud | + | | Pawley (2013) | |
| 15454 | Koitabu | kae | white | | Dutton (2010) | |
| 230676 | Kol | 'pa:le | | | SIL (1981) | |
| 91053 | Komba | kau kau | white | | McElhanon (1967) | white |
| 148530 | Komba (Ândâ River Dialect) | kâu | | | Southwell (1976) | white |
| 148529 | Komba (Gwama River (North) Dialect) | kâu | | | Southwell (1976) | white |
| 148532 | Komba (Gwama River (South) Dialect) | kâu | | | Southwell (1976) | white |
| 148531 | Komba (Puleng River Dialect) | kâu | | | Southwell (1976) | white |
| 210861 | Komyandaret | XæjɔXɨˈjɑ | | | Hughes (2009) | |
| 16634 | Konai | fɔ̃ dʌgi | | | Shaw (1986) | |
| 144132 | Korak | kʌkiʌk | | | Z'graggen (1980) | (white) |
| 210657 | Korowai | 'ʔæ:l̪ᵊjɔ: | | | Hughes (2009) | |
| 33848 | Kosare | kɛrɛ´ | | | Heeschen (1978) | |
| 144141 | Kowaki | foʌ | | | Z'graggen (1980) | (white) |
| 91059 | Kube | rarak | white | | McElhanon (1967) | white |
| 7201 | Kubo | kɔwɔkɔ | | | Shaw (1986) | |
| 5729 | Kubo | kowoko | | | Shaw (1973) | |
| 36265 | Kui | d'ɛlα | | | Stokhof (1975) | |
| 37787 | Kui (Kiramang Dialect) | kʋl | | | Stokhof (1975) | |
| 36499 | Kula | lαk'uy(α) | | | Stokhof (1975) | |
| 751 | Kuman | kiruo | | | Trefry (1969) | |
| 29858 | Kuni-Boazi | papaɣ̯a | | | Voorhoeve (1970) | |
| 165913 | Kuot | pəsok | Vcls 1 (AN: Tigak & Lavongai: posok) | | Lindström (2008) | |
| 244493 | Kwoma | afama | | | Laycock (1968) | |
| 164863 | Kyaka | kakepame | | | Davies and Comrie (1985) | white |
| 164862 | Kyenele (Kyaimbarang Dialect) | kəɽja | | | Davies and Comrie (1985) | white |
