| 7187 | Kubo | hɔme | | | Shaw (1986) | |
| 5715 | Kubo | home | | | Shaw (1973) | |
| 91367 | Kube | ik | tree | | McElhanon (1967) | tree |
| 142222 | Kowaki | nʌ | | | Z'graggen (1980) | tree |
| 33840 | Kosare | tĩⁿdi | | | Heeschen (1978) | |
| 210587 | Korowai | su: | | | Hughes (2009) | |
| 19937 | Korapun-Sela | khal | | | Voorhoeve (1975) | |
| 156440 | Korapun-Sela | kal | | | McElhanon and Voorhoeve (1970) | tree |
| 142213 | Korak | ta | | | Z'graggen (1980) | tree |
| 55370 | Korafe (Rabade Dialect) | i[ka] | tree | | Smallhorn (2011) | |
| 55369 | Korafe (Mokorua Dialect) | i[ka] | tree | | Smallhorn (2011) | |
| 28269 | Korafe | iaka | | | Wilson (1969) | |
| 245368 | Kopar (Singarin Dialect) | 'ɛřař | | | SIL (1977) | |
| 240460 | Kopar (Singarin Dialect) | ˈɛřař | | | Abbott (1985) | |
| 21296 | Koneraw | to | | | Voorhoeve (1975) | |
| 22257 | Konda | oxot-moro | | | Voorhoeve (1975) | |
| 16620 | Konai | hʌbe | | | Shaw (1986) | |
| 210792 | Komyandaret | ⁿdɔˈluh | | | Hughes (2009) | |
| 148435 | Komba (Puleng River Dialect) | nâk | | | Southwell (1976) | tree |
| 148436 | Komba (Gwama River (South) Dialect) | nâk | | | Southwell (1976) | tree |
| 148433 | Komba (Gwama River (North) Dialect) | nâk | | | Southwell (1976) | tree |
| 148434 | Komba (Ândâ River Dialect) | nâk | | | Southwell (1976) | tree |
| 91361 | Komba | nak | tree | | McElhanon (1967) | tree |
| 230612 | Kol | 'ti:nel | | | SIL (1981) | |
| 229614 | Kol | ti̠nɛl | | | SIL (1962) | |
| 22017 | Kokoda (Tarof Dialect) | kemino | | | Voorhoeve (1975) | |
| 22057 | Kokoda (Kasuweri Dialect) | kemini | | | Voorhoeve (1975) | |
| 14997 | Koitabu | idi | tree, stick, pole | | Dutton (2010) | |
| 163806 | Kobon | mampʰ | | | Davies and Comrie (1985) | tree |
| 196286 | Kobon | mab ñöl | + | | Pawley (2013) | |
| 142227 | Kobol | neim | | | Z'graggen (1980) | tree |
| 35009 | Klon (Probur Dialect) | ətt'ey | | | Stokhof (1975) | |
| 35128 | Klon (Halerman Dialect) | att'ey | | | Stokhof (1975) | |
| 217297 | Kirikiri | du | | | Clouse (1997) | |
| 237136 | Kire | kʰa | | | Foley (2005) | |
| 157178 | Kimaghima | do | | | McElhanon and Voorhoeve (1970) | tree |
| 19772 | Kimaghima | do | | | Voorhoeve (1975) | |
| 6432 | Kibiri | kubi | | | Wurm (1973) | |
| 33407 | Keuw | kúd-yô | | | Kamholz (2012) | |
| 33596 | Ketengban | co | | | Heeschen (1978) | |
| 179250 | Kesawai | tr̃i | | | Z'graggen (1980) | tree |
| 6845 | Kerewo | nuʔa | | | Wurm (1973) | |
| 4116 | Keoru-Ahia | kora | | | Brown (1973) | |
| 4326 | Keoru-Ahia (Aheave Dialect) | kora | | | Brown (1973) | |
| 25926 | Kemtuik | di | | | Voorhoeve (1975) | |
| 21857 | Kemberano | kamine | | | Voorhoeve (1975) | |
| 123141 | Kein | a: | | | Z'graggen (1980) | tree |
| 236819 | Kayan | paraŋ | | | Foley (2005) | |
| 20621 | Kayagar | wom | | | Voorhoeve (1975) | |
| 29260 | Kayagar | wom | | | Voorhoeve (1971) | |
