| 166024 | Kuot | bəsok | also 'lung' | | Lindström (2008) | |
| 814 | Kuman | muŋgo | | | Trefry (1969) | |
| 5699 | Kubo | koo | | | Shaw (1973) | |
| 140562 | Kowaki | ʔema | | | Z'graggen (1980) | liver |
| 33797 | Kosare | ikuiminɛ | | | Heeschen (1978) | |
| 210550 | Korowai | ʔu:m | | | Hughes (2009) | |
| 140552 | Korak | -gom | | | Z'graggen (1980) | liver |
| 51768 | Korafe (Mokorua Dialect) | gomo | chest | | Smallhorn (2011) | |
| 210756 | Komyandaret | ʕoᵘ | | | Hughes (2009) | |
| 148950 | Komba (Puleng River Dialect) | ambotŋâ | | | Southwell (1976) | liver |
| 148857 | Komba (Gwama River (South) Dialect) | elokŋâ | | | Southwell (1976) | liver |
| 148811 | Komba (Gwama River (North) Dialect) | elokŋâ | | | Southwell (1976) | liver |
| 148904 | Komba (Ândâ River Dialect) | ambotŋâ | | | Southwell (1976) | liver |
| 231999 | Kol | 'ule ti 'bonɒŋ | | | SIL (1981) | |
| 140567 | Kobol | awagʌmunum | | | Z'graggen (1980) | liver |
| 77689 | Klon | nbur | | | Baird (2008) | |
| 77662 | Klon | oomi | | | Baird (2008) | |
| 213536 | Kirikiri (Faia Dialect) | kuɾu | | | Clouse (1997) | |
| 213537 | Kirikiri | kuɾu | | | Clouse (1997) | |
| 6416 | Kibiri | imakari | | | Wurm (1973) | |
| 33643 | Ketengban | yeko | | | Heeschen (1978) | |
| 6829 | Kerewo | beu | | | Wurm (1973) | |
| 4100 | Keoru-Ahia | iki | | | Brown (1973) | |
| 4310 | Keoru-Ahia (Aheave Dialect) | iki | | | Brown (1973) | |
| 121269 | Kein | bahu- | | | Z'graggen (1980) | liver |
| 17461 | Kawacha | ke | | | Lloyd (1973) | |
| 213543 | Kaure | phue | | | Clouse (1997) | |
| 2005 | Kasua | hau | | | Franklin and Voorhoeve (1973) | |
| 121266 | Kare | koura | | | Z'graggen (1980) | liver |
| 224888 | Kapriman | wavəL | | | Dye et al (1968) | |
| 27334 | Kamula | usuala | | | Reesink (1976) | |
| 32254 | Kambaira | aq'umi | | | SIL () | |
| 1705 | Kamasa | ke | | | Lloyd (1973) | |
| 73611 | Kamano | (ä)súmäna | | | Scott (1978) | |
| 3262 | Kaluli | yook | | | Franklin and Voorhoeve (1973) | |
| 195717 | Kalam | mapn | | | Pawley (2013) | |
| 6179 | Kaki Ae | ahena | | | Brown (1973) | |
| 198422 | Iteri | imɛsi | | | Conrad and Dye (1975) | |
| 80372 | Ipili | lasiane | | | Franklin (1975) | |
| 17152 | Ipiko | li′ya | | | Franklin (1973) | |
| 73616 | Inoke-Yate | háu(ne) | | | Scott (1978) | |
| 219017 | Indonesian | hati | | | Kriens & Lebold (2010) | |
| 3570 | Ikobi-Mena | doro | | | Franklin (1973) | |
| 213539 | Iau | ta | | | Clouse (1997) | |
| 202109 | Iatmul (Tambanam Dialect) | wutmwi | | | Staalsen (1969) | |
| 202377 | Iatmul (Korogo Dialect) | wupmwin | | | Staalsen (1969) | |
| 202244 | Iatmul (Kanganaman Dialect) | wutmwi | | | Staalsen (1969) | |
| 202514 | Iatmul (Brugnowi Dialect) | wupmwin | | | Staalsen (1969) | |
| 51763 | Hunjara-Kaina Ke | gomo | liver | | Smallhorn (2011) | |
| 51764 | Hunjara-Kaina Ke | komo | lung(s) | | Smallhorn (2011) | |
