| 230135 | Kol | 'kel.a | | | SIL (1981) | |
| 229586 | Kol | kela keřne | | | SIL (1962) | |
| 22000 | Kokoda (Tarof Dialect) | akaboya | | | Voorhoeve (1975) | |
| 22040 | Kokoda (Kasuweri Dialect) | akaba | | | Voorhoeve (1975) | |
| 196104 | Kobon | nab+c | - | | Pawley (2013) | |
| 196105 | Kobon | nabcög goɫ | - | | Pawley (2013) | |
| 163037 | Kobon | 'nambət̮ɑ | | | Davies and Comrie (1985) | head |
| 139571 | Kobol | amoŋgot | | | Z'graggen (1980) | head |
| 34967 | Klon (Probur Dialect) | n'ɛttu | | | Stokhof (1975) | |
| 35086 | Klon (Halerman Dialect) | nɛ''ikhəd'a | | | Stokhof (1975) | |
| 77491 | Klon | to | | | Baird (2008) | |
| 77490 | Klon | werman | | | Baird (2008) | |
| 212563 | Kirikiri (Faia Dialect) | sa-ɣi | | | Clouse (1997) | |
| 212564 | Kirikiri | ta | | | Clouse (1997) | |
| 155119 | Kinalakna | mam | | | McElhanon and Voorhoeve (1970) | head |
| 19755 | Kimaghima | tuakwo | | | Voorhoeve (1975) | |
| 6397 | Kibiri | kimi | | | Wurm (1973) | |
| 33282 | Keuw | kpúunt-yô | | | Kamholz (2012) | |
| 33635 | Ketengban | giso | | | Heeschen (1978) | |
| 176570 | Kesawai | tr̃ubu | | | Z'graggen (1980) | head |
| 6810 | Kerewo | sono | | | Wurm (1973) | |
| 4081 | Keoru-Ahia | haro | | | Brown (1973) | |
| 4291 | Keoru-Ahia (Aheave Dialect) | haro | | | Brown (1973) | |
| 25909 | Kemtuik | iŋkabu | | | Voorhoeve (1975) | |
| 21840 | Kemberano | akave | | | Voorhoeve (1975) | |
| 120183 | Kein | gagali- | | | Z'graggen (1980) | head |
| 20604 | Kayagar | toxom | | | Voorhoeve (1975) | |
| 29222 | Kayagar | toxom | | | Voorhoeve (1971) | |
| 17442 | Kawacha | munakɨna | | | Lloyd (1973) | |
| 22568 | Kauwera | napar | | | Voorhoeve (1975) | |
| 212575 | Kaure | pɔklai | | | Clouse (1997) | |
| 19433 | Kaure | kasera | | | Voorhoeve (1975) | |
| 29406 | Kaure | pleŋ | | | Voorhoeve (1971) | |
| 155137 | Kâte (Wemo Dialect) | kpitseʔ | | | McElhanon and Voorhoeve (1970) | head |
| 155136 | Kâte (Wâmora Dialect) | kpidzaʔ | | | McElhanon and Voorhoeve (1970) | head |
| 155135 | Kâte (Mâgobineng Dialect) | kpidzaʔ | | | McElhanon and Voorhoeve (1970) | head |
| 91618 | Kâte | kpitsec- | (its) head | | McElhanon (1967) | (its) head |
| 16385 | Kasua | bizei | | | Shaw (1986) | |
| 1986 | Kasua | pesai | | | Franklin and Voorhoeve (1973) | |
| 23604 | Karon Dori | enah | | | Voorhoeve (1975) | |
| 34466 | Karon Dori | tana | | | Miedema & Welling (1985) | |
| 120177 | Kare | kowo- | | | Z'graggen (1980) | head |
| 120178 | Kare | kendʌ:ga | | | Z'graggen (1980) | head |
| 120179 | Kare | benda | | | Z'graggen (1980) | head |
| 243235 | Karawa | moulaka | | | Laycock (1968) | |
| 21760 | Karas | nakal | | | Voorhoeve (1975) | |
| 224669 | Kapriman | toɣo | | | Dye et al (1968) | |
| 19555 | Kapauri | aure | | | Voorhoeve (1975) | |
| 21045 | Kanum | mel | | | Voorhoeve (1975) | |
| 27314 | Kamula | dokupala | | | Reesink (1976) | |
