| 25486 | Kowiai | labi | | | Voorhoeve (1975) | |
| 142653 | Kowaki | muntetat | | | Z'graggen (1980) | fire |
| 157141 | Kovai | puŋ | | | McElhanon and Voorhoeve (1970) | fire |
| 33780 | Kosare | sá | | | Heeschen (1978) | |
| 210625 | Korowai | mə'l̪i:ɾ̥ | | | Hughes (2009) | |
| 19915 | Korapun-Sela | uk | | | Voorhoeve (1975) | |
| 159864 | Korapun-Sela | uk | | | McElhanon and Voorhoeve (1970) | fire |
| 142644 | Korak | tamako | | | Z'graggen (1980) | fire |
| 50279 | Korafe (Rabade Dialect) | a'βa[raka] | fire | | Smallhorn (2011) | |
| 28254 | Korafe | aƀaraka | | | Wilson (1969) | |
| 235370 | Kopar | awr | | | Foley (2005) | |
| 236040 | Kopar | awr | | | Foley (2005) | |
| 245354 | Kopar (Singarin Dialect) | 'auř | | | SIL (1977) | |
| 240447 | Kopar (Singarin Dialect) | ˈauř | | | Abbott (1985) | |
| 21274 | Koneraw | war | | | Voorhoeve (1975) | |
| 22235 | Konda | ucua | | | Voorhoeve (1975) | |
| 16616 | Konai | dou | | | Shaw (1986) | |
| 210827 | Komyandaret | məˈliʔ | | | Hughes (2009) | |
| 201587 | Kombai | e | | | Voorhoeve (2000) | |
| 148567 | Komba (Puleng River Dialect) | kârâp | | | Southwell (1976) | fire |
| 148568 | Komba (Gwama River (South) Dialect) | kârâp | | | Southwell (1976) | fire |
| 148565 | Komba (Gwama River (North) Dialect) | kârâp | | | Southwell (1976) | fire |
| 148566 | Komba (Ândâ River Dialect) | kârâp | | | Southwell (1976) | fire |
| 157156 | Komba | kʌrʌp | | | McElhanon and Voorhoeve (1970) | fire |
| 230378 | Kol | ku'oŋ | | | SIL (1981) | |
| 229607 | Kol | kuɔŋ | | | SIL (1962) | |
| 21995 | Kokoda (Tarof Dialect) | inete | | | Voorhoeve (1975) | |
| 22035 | Kokoda (Kasuweri Dialect) | ineta | | | Voorhoeve (1975) | |
| 14700 | Koitabu | vene | fire, firewood | | Dutton (2010) | |
| 163469 | Kobon | ɲʌɬ | | | Davies and Comrie (1985) | fire |
| 196071 | Kobon | mab | + | | Pawley (2013) | |
| 142658 | Kobol | mut | | | Z'graggen (1980) | fire |
| 35004 | Klon (Probur Dialect) | add'αwar | fire, firewood | | Stokhof (1975) | |
| 35123 | Klon (Halerman Dialect) | adw'αɛr | fire, firewood | | Stokhof (1975) | |
| 77625 | Klon | adaq | | | Baird (2008) | |
| 214443 | Kirikiri (Faia Dialect) | kwɛ | | | Clouse (1997) | |
| 214444 | Kirikiri | kwɛ | | | Clouse (1997) | |
| 237043 | Kire | vap | | | Foley (2005) | |
| 157147 | Kinalakna | konop | | | McElhanon and Voorhoeve (1970) | fire |
| 19750 | Kimaghima | i | | | Voorhoeve (1975) | |
| 6428 | Kibiri | elei | | | Wurm (1973) | |
| 33255 | Keuw | núup-yò | | | Kamholz (2012) | |
| 33256 | Keuw | óopí-yò | firewood | | Kamholz (2012) | |
| 33625 | Ketengban | ukwe | | | Heeschen (1978) | |
| 179656 | Kesawai | hegeni | | | Z'graggen (1980) | fire |
| 6841 | Kerewo | kupo | | | Wurm (1973) | |
| 4112 | Keoru-Ahia | a | | | Brown (1973) | |
| 4322 | Keoru-Ahia (Aheave Dialect) | kere | | | Brown (1973) | |
| 25904 | Kemtuik | koy | | | Voorhoeve (1975) | |
| 21835 | Kemberano | inete | | | Voorhoeve (1975) | |
