| 90801 | Komba | mâiktâ | small | | McElhanon (1967) | small |
| 230377 | Kol | ka 'pu:o | | | SIL (1981) | |
| 229606 | Kol | kapuʌ | | | SIL (1962) | |
| 196229 | Kobon | apɨc | - | | Pawley (2013) | |
| 163446 | Kobon | ϕro | | | Davies and Comrie (1985) | small |
| 196231 | Kobon | pro | - | | Pawley (2013) | |
| 196230 | Kobon | pipi | - | | Pawley (2013) | |
| 144059 | Kobol | ɛpigɛndɛ(ro) | | | Z'graggen (1980) | (small) |
| 35073 | Klon (Probur Dialect) | kɛk'eyn | | | Stokhof (1975) | |
| 35192 | Klon (Halerman Dialect) | kikɛn'iit | | | Stokhof (1975) | |
| 77695 | Klon | kding | | | Baird (2008) | |
| 77702 | Klon | knit | | | Baird (2008) | |
| 77701 | Klon | knis | | | Baird (2008) | |
| 77694 | Klon | eleb | | | Baird (2008) | |
| 77520 | Klon | mnaak | | | Baird (2008) | |
| 218591 | Kirikiri (Faia Dialect) | kokoβai | | | Clouse (1997) | |
| 218592 | Kirikiri | so | | | Clouse (1997) | |
| 6442 | Kibiri | eteaurimi | | | Wurm (1973) | |
| 33361 | Keuw | núdəә́kémúdnùŋɡúi | | | Kamholz (2012) | |
| 33586 | Ketengban | metek | small, little | | Heeschen (1978) | |
| 181090 | Kesawai | piri taurei | | | Z'graggen (1980) | small |
| 181089 | Kesawai | kʌlʌne | | | Z'graggen (1980) | small |
| 6855 | Kerewo | kekebo | | | Wurm (1973) | |
| 4126 | Keoru-Ahia | keikaikore | | | Brown (1973) | |
| 4336 | Keoru-Ahia (Aheave Dialect) | ehaelakore | | | Brown (1973) | |
| 125183 | Kein | ginʌbɛt | | | Z'graggen (1980) | small |
| 29250 | Kayagar | tapəreax | | | Voorhoeve (1971) | |
| 17487 | Kawacha | ma'me | | | Lloyd (1973) | |
| 29434 | Kaure | tenehei | | | Voorhoeve (1971) | |
| 218603 | Kaure | tanya | | | Clouse (1997) | |
| 90806 | Kâte | piticne | small | | McElhanon (1967) | small |
| 2031 | Kasua | korotea | | | Franklin and Voorhoeve (1973) | |
| 16430 | Kasua | kɔrɔtea | | | Shaw (1986) | |
| 125180 | Kare | nagʌnda | | | Z'graggen (1980) | small |
| 224745 | Kapriman | glɩkha | | | Dye et al (1968) | |
| 27361 | Kamula | yikyæməna (?) | | | Reesink (1976) | |
| 16530 | Kamula | yimikʌmʌlʌ | | | Shaw (1986) | |
| 1731 | Kamasa | waanyane- (vogo) | | | Lloyd (1973) | |
| 74260 | Kamano | ónena' | | | Scott (1978) | |
| 74259 | Kamano | osí | | | Scott (1978) | |
| 260638 | Kamang (Pido 2 Dialect) | b'ugut | | | Stokhof (1975) | |
| 260639 | Kamang (Pido 2 Dialect) | b'αgɔt | | | Stokhof (1975) | |
| 38251 | Kamang (Pido 1 Dialect) | bug'ud. | | | Stokhof (1975) | |
| 38369 | Kamang (Letley Dialect) | kid'iŋ | | | Stokhof (1975) | |
| 38603 | Kamang (Langkuru Dialect) | b'ɔkkɔn | | | Stokhof (1975) | |
| 37080 | Kamang (Kolomane Dialect) | bɔg | | | Stokhof (1975) | |
| 36025 | Kamang | kĭd'iŋ | | | Stokhof (1975) | |
| 16730 | Kaluli | helu | | | Shaw (1986) | |
| 3288 | Kaluli | haalu | | | Franklin and Voorhoeve (1973) | |
| 195808 | Kalam | skoy | | | Pawley (2013) | |
