| 15342 | Koitabu | bauge | big | | Dutton (2010) | |
| 195988 | Kobon | kub | + | | Pawley (2013) | |
| 163423 | Kobon | kʰumpʰ | | | Davies and Comrie (1985) | big |
| 195989 | Kobon | wasɨm | + | | Pawley (2013) | |
| 144030 | Kobol | agapi | | | Z'graggen (1980) | big |
| 35042 | Klon (Probur Dialect) | ααl | | | Stokhof (1975) | |
| 35161 | Klon (Halerman Dialect) | ʔαl | | | Stokhof (1975) | |
| 77519 | Klon | aal | | | Baird (2008) | |
| 77522 | Klon | tmok | | | Baird (2008) | |
| 218565 | Kirikiri (Faia Dialect) | hekwase | | | Clouse (1997) | |
| 218566 | Kirikiri | ɸiɾe | | | Clouse (1997) | |
| 237246 | Kire | bakume | | | Foley (2005) | |
| 6441 | Kibiri | iwari | | | Wurm (1973) | |
| 33177 | Keuw | mbúud-nô | | | Kamholz (2012) | |
| 33560 | Ketengban | wik | | | Heeschen (1978) | |
| 181055 | Kesawai | ar̃ene | | | Z'graggen (1980) | big |
| 6854 | Kerewo | aᵘwo | | | Wurm (1973) | |
| 4125 | Keoru-Ahia | lale'a | singular and plural | | Brown (1973) | |
| 4335 | Keoru-Ahia (Aheave Dialect) | laleha | | | Brown (1973) | |
| 125152 | Kein | bano | | | Z'graggen (1980) | big |
| 236924 | Kayan | aneak | | | Foley (2005) | |
| 29195 | Kayagar | tapur | | | Voorhoeve (1971) | |
| 17486 | Kawacha | movɨnya | | | Lloyd (1973) | |
| 218577 | Kaure | simbua | | | Clouse (1997) | |
| 29380 | Kaure | numogoa | | | Voorhoeve (1971) | |
| 90792 | Kâte | kâcgbene | big | | McElhanon (1967) | big |
| 2030 | Kasua | sosoro | | | Franklin and Voorhoeve (1973) | |
| 16429 | Kasua | sosoľo | | | Shaw (1986) | |
| 125149 | Kare | mi:gi | | | Z'graggen (1980) | big |
| 224741 | Kapriman | marbe | | | Dye et al (1968) | |
| 237244 | Kanggape | arum | | | Foley (2005) | |
| 16529 | Kamula | pʌtɔ | | | Shaw (1986) | |
| 27360 | Kamula | pato | | | Reesink (1976) | |
| 1730 | Kamasa | naamu | | | Lloyd (1973) | |
| 72289 | Kamano | tusi | | | Scott (1978) | |
| 72288 | Kamano | ra | | | Scott (1978) | |
| 37986 | Kamang (Pido 2 Dialect) | tib'α | | | Stokhof (1975) | |
| 38220 | Kamang (Pido 1 Dialect) | kαt'bα | | | Stokhof (1975) | |
| 38338 | Kamang (Letley Dialect) | p'uk(u) | | | Stokhof (1975) | |
| 38572 | Kamang (Langkuru Dialect) | bαr'aŋ | | | Stokhof (1975) | |
| 37049 | Kamang (Kolomane Dialect) | pur | | | Stokhof (1975) | |
| 35994 | Kamang | bαy | | | Stokhof (1975) | |
| 3287 | Kaluli | a̧la̧n | | | Franklin and Voorhoeve (1973) | |
| 16729 | Kaluli | ãlã | | | Shaw (1986) | |
| 184874 | Kalam | kub | | | Pawley (2013) | |
| 184873 | Kalam | yob | | | Pawley (2013) | |
| 6204 | Kaki Ae | hiʔivila | | | Brown (1973) | |
| 218572 | Kaiy | kɾaioɾi | | | Clouse (1997) | |
| 34925 | Kafoa | l'eyα | | | Stokhof (1975) | |
| 37634 | Kabola (Pitumbang Dialect) | nαm'ɔti | | | Stokhof (1975) | |
