| 236114 | Kopar | mimiŋ | | | Foley (2005) | |
| 235444 | Kopar | mimiŋ | | | Foley (2005) | |
| 240450 | Kopar (Singarin Dialect) | ˈmbəneŋ | | | Abbott (1985) | |
| 245357 | Kopar (Singarin Dialect) | 'mbəneŋ | | | SIL (1977) | |
| 16591 | Konai | i | | | Shaw (1986) | |
| 210749 | Komyandaret | hɜj | | | Hughes (2009) | |
| 201627 | Kombai | fɑgɑ | | | Voorhoeve (2000) | |
| 148953 | Komba (Puleng River Dialect) | nâmbâlâm | | | Southwell (1976) | tongue |
| 148860 | Komba (Gwama River (South) Dialect) | nimbulam | | | Southwell (1976) | tongue |
| 148814 | Komba (Gwama River (North) Dialect) | nimbulam | | | Southwell (1976) | tongue |
| 148907 | Komba (Ândâ River Dialect) | nâmbâlâm | | | Southwell (1976) | tongue |
| 154911 | Komba | nembilam | | | McElhanon and Voorhoeve (1970) | tongue |
| 91515 | Komba | nâbâlam- | (its) tongue | | McElhanon (1967) | (its) tongue |
| 229611 | Kol | dal kɛřnɛ | | | SIL (1962) | |
| 230381 | Kol | raal | | | SIL (1981) | |
| 163565 | Kobon | a'ʎampʰ | | | Davies and Comrie (1985) | tongue |
| 196280 | Kobon | aɫab | + | | Pawley (2013) | |
| 139769 | Kobol | mer̃ | | | Z'graggen (1980) | (tongue) |
| 34982 | Klon (Probur Dialect) | nɛl'eeb- | | | Stokhof (1975) | |
| 35101 | Klon (Halerman Dialect) | nɛl'eeb | | | Stokhof (1975) | |
| 77658 | Klon | leb | | | Baird (2008) | |
| 212856 | Kirikiri (Faia Dialect) | oma | | | Clouse (1997) | |
| 212857 | Kirikiri | abla | | | Clouse (1997) | |
| 237093 | Kire | ze | | | Foley (2005) | |
| 154903 | Kinalakna | nembalam | | | McElhanon and Voorhoeve (1970) | tongue |
| 6403 | Kibiri | bei | | | Wurm (1973) | |
| 33400 | Keuw | áalì-yò | | | Kamholz (2012) | |
| 33594 | Ketengban | lyemngwe | | | Heeschen (1978) | |
| 176744 | Kesawai | tama mɛa | | | Z'graggen (1980) | tongue |
| 6816 | Kerewo | mototobe | | | Wurm (1973) | |
| 4087 | Keoru-Ahia | hailu | | | Brown (1973) | |
| 4297 | Keoru-Ahia (Aheave Dialect) | eru | | | Brown (1973) | |
| 120404 | Kein | minɔ- | | | Z'graggen (1980) | tongue |
| 236779 | Kayan | memraŋ | | | Foley (2005) | |
| 29258 | Kayagar | marap | | | Voorhoeve (1971) | |
| 17448 | Kawacha | teva | | | Lloyd (1973) | |
| 212868 | Kaure | sɾumu | | | Clouse (1997) | |
| 29444 | Kaure | sremu | | | Voorhoeve (1971) | |
| 154928 | Kâte (Wemo Dialect) | nameŋ | | | McElhanon and Voorhoeve (1970) | tongue |
| 154927 | Kâte (Wâmora Dialect) | nameŋ | | | McElhanon and Voorhoeve (1970) | tongue |
| 154926 | Kâte (Mâgobineng Dialect) | nameŋ | | | McElhanon and Voorhoeve (1970) | tongue |
| 91520 | Kâte | nameŋ- | (its) tongue | | McElhanon (1967) | (its) tongue |
| 16391 | Kasua | tepɛ | | | Shaw (1986) | |
| 1992 | Kasua | tepe | | | Franklin and Voorhoeve (1973) | |
| 120401 | Kare | mambramba | | | Z'graggen (1980) | tongue |
| 243438 | Karawa | laləpi | | | Laycock (1968) | |
| 224765 | Kapriman | thʌdɩs | | | Dye et al (1968) | |
| 237091 | Kanggape | mimiaŋ | | | Foley (2005) | |
| 27320 | Kamula | te | | | Reesink (1976) | |
| 16491 | Kamula | tɛ | | | Shaw (1986) | |
