| 156462 | Kutong (Sakam Dialect) | kep | | | McElhanon and Voorhoeve (1970) | skin |
| 24952 | Kurudu | rui | | | Voorhoeve (1975) | |
| 166030 | Kuot | kumalip | only in plural form | | Lindström (2008) | |
| 166031 | Kuot | neip | only in plural form | | Lindström (2008) | |
| 165936 | Kuot | pəppək | pÉ™ppÉ™k also of 'peel', 'bark' etc. | | Lindström (2008) | |
| 156438 | Kuni-Boazi (Boazi Dialect) | ŋgusum | | | McElhanon and Voorhoeve (1970) | skin |
| 28663 | Kuni-Boazi | ŋgusəm | | | Voorhoeve (1970) | |
| 21971 | Kuni-Boazi | ŋgusum | | | Voorhoeve (1975) | |
| 156500 | Kumukio | mondzi | | | McElhanon and Voorhoeve (1970) | skin |
| 730 | Kuman | gaŋgino | | | Trefry (1969) | |
| 36415 | Kula | ŋag'akα | | | Stokhof (1975) | |
| 37703 | Kui (Kiramang Dialect) | nɛk'uli | | | Stokhof (1975) | |
| 36181 | Kui | nɔk'ul | | | Stokhof (1975) | |
| 7166 | Kubo | kɔlɔ | | | Shaw (1986) | |
| 5694 | Kubo | kolo | | | Shaw (1973) | |
| 156425 | Kubo | kɔrɔ | | | McElhanon and Voorhoeve (1970) | skin |
| 91605 | Kube | sewira | (its) skin | | McElhanon (1967) | (its) skin |
| 156505 | Kube | sʌbʌl | | | McElhanon and Voorhoeve (1970) | skin |
| 140670 | Kowaki | hupʌ fuʔu | | | Z'graggen (1980) | (skin) |
| 156495 | Kovai | siŋlo | | | McElhanon and Voorhoeve (1970) | skin |
| 210554 | Korowai | ʔæ:ɾ | | | Hughes (2009) | |
| 19931 | Korapun-Sela | boxa | | | Voorhoeve (1975) | |
| 140661 | Korak | kim | | | Z'graggen (1980) | (skin) |
| 54009 | Korafe (Rabade Dialect) | a'noso | bark of tree | | Smallhorn (2011) | |
| 54052 | Korafe (Rabade Dialect) | 'tamo | skin | | Smallhorn (2011) | |
| 54008 | Korafe (Mokorua Dialect) | a'noso | skin | | Smallhorn (2011) | |
| 28244 | Korafe | tamõ | | | Wilson (1969) | |
| 245341 | Kopar (Singarin Dialect) | 'nangun | | | SIL (1977) | |
| 240430 | Kopar (Singarin Dialect) | ˈnangun | | | Abbott (1985) | |
| 21290 | Koneraw | par | | | Voorhoeve (1975) | |
| 22251 | Konda | giri | | | Voorhoeve (1975) | |
| 16599 | Konai | kɔlɔ | | | Shaw (1986) | |
| 210760 | Komyandaret | Xæ | | | Hughes (2009) | |
| 201617 | Kombai | xɑ | | | Voorhoeve (2000) | |
| 148711 | Komba (Puleng River Dialect) | sâkŋâ | skin (his) | | Southwell (1976) | skin (his) |
| 148712 | Komba (Gwama River (South) Dialect) | sâkŋâ | skin (his) | | Southwell (1976) | skin (his) |
| 148709 | Komba (Gwama River (North) Dialect) | sâkŋâ | skin (his) | | Southwell (1976) | skin (his) |
| 148710 | Komba (Ândâ River Dialect) | sâkŋâ | skin (his) | | Southwell (1976) | skin (his) |
| 156508 | Komba | sʌk | | | McElhanon and Voorhoeve (1970) | skin |
| 91599 | Komba | sâk- | (its) skin | | McElhanon (1967) | (its) skin |
| 229592 | Kol | tomalu gomo | tomolu | | SIL (1962) | |
| 230141 | Kol | to'molu | | | SIL (1981) | |
| 22011 | Kokoda (Tarof Dialect) | akai | | | Voorhoeve (1975) | |
| 22051 | Kokoda (Kasuweri Dialect) | akis | | | Voorhoeve (1975) | |
| 14685 | Koitabu | vata-ka | skin | | Dutton (2010) | |
| 163182 | Kobon | haɲ | | | Davies and Comrie (1985) | skin |
| 196226 | Kobon | hañ | - | | Pawley (2013) | |
| 140675 | Kobol | ogu | | | Z'graggen (1980) | (skin) |
| 34994 | Klon (Probur Dialect) | nikw'i’ | | | Stokhof (1975) | |
| 35113 | Klon (Halerman Dialect) | n'ɛkul | | | Stokhof (1975) | |
