| 140360 | Maia (Pila Dialect) | -mar | | | Z'graggen (1980) | belly |
| 257037 | Magɨ | kɨtɨm | | | Daniels (2016) | |
| 177367 | Lemio | kuŋk | | | Z'graggen (1980) | belly |
| 163174 | Lembena (Yariba Dialect) | ɽiŋk | | | Davies and Comrie (1985) | belly |
| 163164 | Lembena (Maibi Dialect) | ɽiŋk͑ | | | Davies and Comrie (1985) | belly |
| 163163 | Lembena | tomba | | | Davies and Comrie (1985) | belly |
| 76243 | Lavukaleve | vala | belly | | Tryon & Hackman (1983) | |
| 163165 | Kyenele (Miyak Dialect) | ndaw | | | Davies and Comrie (1985) | belly |
| 163158 | Kyenele (Kyaimbarang Dialect) | 'ⁿdau | | | Davies and Comrie (1985) | belly |
| 163159 | Kyaka | tomba | | | Davies and Comrie (1985) | belly |
| 243568 | Kwoma | mpə | | | Laycock (1968) | |
| 165911 | Kuot | puana | | | Lindström (2008) | |
| 29832 | Kuni-Boazi | ěmǔ | | | Voorhoeve (1970) | |
| 32558 | Kuman | gongau-mo | liver | | Salisbury (1956) | |
| 658 | Kuman | deno | | | Trefry (1969) | |
| 5691 | Kubo | gosiyo | | | Shaw (1973) | |
| 7163 | Kubo | gɔsiɔ | | | Shaw (1986) | |
| 90877 | Kube | tomeŋ- | (its) belly | | McElhanon (1967) | (its) belly |
| 140366 | Kowaki | munaʔ | | | Z'graggen (1980) | belly |
| 33853 | Kosare | ang | | | Heeschen (1978) | |
| 140357 | Korak | -taŋu | | | Z'graggen (1980) | belly |
| 47893 | Korafe (Rabade Dialect) | 'tini | belly | | Smallhorn (2011) | |
| 47892 | Korafe (Mokorua Dialect) | 'tini | belly | | Smallhorn (2011) | |
| 28243 | Korafe | tini | | | Wilson (1969) | |
| 245340 | Kopar (Singarin Dialect) | 'soř | | | SIL (1977) | |
| 16596 | Konai | gwɔkɔ | | | Shaw (1986) | |
| 90871 | Komba | tip- | (its) belly | | McElhanon (1967) | (its) belly |
| 230140 | Kol | 'koβia | | | SIL (1981) | |
| 229591 | Kol | kobi almo | | | SIL (1962) | |
| 195987 | Kobon | mudun | - | | Pawley (2013) | |
| 163157 | Kobon | ˌhimbə'nampʰ | | | Davies and Comrie (1985) | belly |
| 140371 | Kobol | nout | | | Z'graggen (1980) | belly |
| 77659 | Klon | bet | stomach | | Baird (2008) | |
| 6408 | Kibiri | bauri | | | Wurm (1973) | |
| 33175 | Keuw | bráat-yô | | | Kamholz (2012) | |
| 33559 | Ketengban | mundo | | | Heeschen (1978) | |
| 177362 | Kesawai | hukuru | | | Z'graggen (1980) | belly |
| 6821 | Kerewo | niro | | | Wurm (1973) | |
| 4092 | Keoru-Ahia | morupe | | | Brown (1973) | |
| 4302 | Keoru-Ahia (Aheave Dialect) | morupe | | | Brown (1973) | |
| 121055 | Kein | bigu- | | | Z'graggen (1980) | belly |
| 29194 | Kayagar | kaap | | | Voorhoeve (1971) | |
| 17453 | Kawacha | sɨmega | | | Lloyd (1973) | |
| 17539 | Kawacha | aavya | | | Lloyd (1973) | |
| 29379 | Kaure | koai | | | Voorhoeve (1971) | |
| 90876 | Kâte | bu- | (its) belly | | McElhanon (1967) | (its) belly |
| 16396 | Kasua | kubu | | | Shaw (1986) | |
| 1997 | Kasua | ipura | | | Franklin and Voorhoeve (1973) | |
| 121053 | Kare | e- mboŋga | | | Z'graggen (1980) | belly |
| 243558 | Karawa | ri | | | Laycock (1968) | |
