| 19417 | Kaure | sandəhu | | | Voorhoeve (1975) | |
| 29378 | Kaure | sandehu | | | Voorhoeve (1971) | |
| 22552 | Kauwera | marak | | | Voorhoeve (1975) | |
| 17475 | Kawacha | kwaakuva | | | Lloyd (1973) | |
| 29193 | Kayagar | ererep | | | Voorhoeve (1971) | |
| 20588 | Kayagar | ererep | | | Voorhoeve (1975) | |
| 123634 | Kein | waibul | | | Z'graggen (1980) | ashes |
| 123633 | Kein | mus | | | Z'graggen (1980) | ashes |
| 21824 | Kemberano | botano | | | Voorhoeve (1975) | |
| 25893 | Kemtuik | suŋ | | | Voorhoeve (1975) | |
| 4324 | Keoru-Ahia (Aheave Dialect) | ahe | | | Brown (1973) | |
| 4114 | Keoru-Ahia | a-ehe | | | Brown (1973) | |
| 6843 | Kerewo | tuo | | | Wurm (1973) | |
| 179715 | Kesawai | aho | | | Z'graggen (1980) | ashes |
| 179716 | Kesawai | hisainɛ | | | Z'graggen (1980) | ashes |
| 33557 | Ketengban | agoma | | | Heeschen (1978) | |
| 33164 | Keuw | núu-yô | | | Kamholz (2012) | |
| 6430 | Kibiri | omori | | | Wurm (1973) | |
| 19739 | Kimaghima | tii | | | Voorhoeve (1975) | |
| 159829 | Kinalakna | kau | | | McElhanon and Voorhoeve (1970) | ashes |
| 77627 | Klon | uduur | | | Baird (2008) | |
| 35160 | Klon (Halerman Dialect) | ad'ur | | | Stokhof (1975) | |
| 35041 | Klon (Probur Dialect) | əd'ur | | | Stokhof (1975) | |
| 142713 | Kobol | atugut | | | Z'graggen (1980) | ash |
| 142714 | Kobol | oumu | | | Z'graggen (1980) | ash |
| 195979 | Kobon | he | - | | Pawley (2013) | |
| 195977 | Kobon | haɫpɨɫ | - | | Pawley (2013) | |
| 163516 | Kobon | ɾ̥unə'me | | | Davies and Comrie (1985) | ashes |
| 15612 | Koitabu | utuɣo | ashes | | Dutton (2010) | |
| 22024 | Kokoda (Kasuweri Dialect) | u-debi | | | Voorhoeve (1975) | |
| 21984 | Kokoda (Tarof Dialect) | u-debi | | | Voorhoeve (1975) | |
| 231995 | Kol | 'sɒ:no | | | SIL (1981) | |
| 229609 | Kol | c̈ɔnɔ | | | SIL (1962) | |
| 91319 | Komba | kau | ashes | | McElhanon (1967) | ashes |
| 159838 | Komba | kʌu | | | McElhanon and Voorhoeve (1970) | ashes |
| 148390 | Komba (Ândâ River Dialect) | kâu | | | Southwell (1976) | ashes |
| 148389 | Komba (Gwama River (North) Dialect) | kâu | | | Southwell (1976) | ashes |
| 148392 | Komba (Gwama River (South) Dialect) | kâu | | | Southwell (1976) | ashes |
| 148391 | Komba (Puleng River Dialect) | kâu | | | Southwell (1976) | ashes |
| 210829 | Komyandaret | ʔæˈnɔh | | | Hughes (2009) | |
| 16618 | Konai | dʌsigɔ̃ | | | Shaw (1986) | |
| 22224 | Konda | tepa-ŋgini | | | Voorhoeve (1975) | |
| 21263 | Koneraw | emun | | | Voorhoeve (1975) | |
| 28256 | Korafe | aƀeǥa | | | Wilson (1969) | |
| 47618 | Korafe (Rabade Dialect) | a'βeɣa | ashes (black) | | Smallhorn (2011) | |
| 142698 | Korak | oŋ | | | Z'graggen (1980) | ash |
| 19904 | Korapun-Sela | asul | | | Voorhoeve (1975) | |
| 210627 | Korowai | ʔæ'n̪ɔ:m | | | Hughes (2009) | |
| 33851 | Kosare | sá'ká | | | Heeschen (1978) | |
| 159822 | Kovai | tep | | | McElhanon and Voorhoeve (1970) | ashes |
