| 155226 | Kinalakna | nupi | | | McElhanon and Voorhoeve (1970) | sand |
| 213833 | Kirikiri | kaɾi | | | Clouse (1997) | |
| 213832 | Kirikiri (Faia Dialect) | kaɾi | | | Clouse (1997) | |
| 35190 | Klon (Halerman Dialect) | al'at | not sure whether this is /l/ or /i/ | | Stokhof (1975) | |
| 35071 | Klon (Probur Dialect) | αl'at- | | | Stokhof (1975) | |
| 143026 | Kobol | horom | | | Z'graggen (1980) | sand |
| 196206 | Kobon | kuɫup | + | | Pawley (2013) | |
| 232003 | Kol | mo'rɒ:no | | | SIL (1981) | |
| 91277 | Komba | sak | sand | | McElhanon (1967) | sand |
| 155234 | Komba | sak | | | McElhanon and Voorhoeve (1970) | sand |
| 148394 | Komba (Ândâ River Dialect) | sak | | | Southwell (1976) | sand |
| 148393 | Komba (Gwama River (North) Dialect) | sak | | | Southwell (1976) | sand |
| 148396 | Komba (Gwama River (South) Dialect) | sak | | | Southwell (1976) | sand |
| 148395 | Komba (Puleng River Dialect) | sak | | | Southwell (1976) | sand |
| 210812 | Komyandaret | ˈʔæmbɯ | | | Hughes (2009) | |
| 240499 | Kopar (Singarin Dialect) | ˈkʰəkʰəřən | | | Abbott (1985) | |
| 245413 | Kopar (Singarin Dialect) | 'kʰəkʰəřən | | | SIL (1977) | |
| 53526 | Korafe (Mokorua Dialect) | 'kora | sand | | Smallhorn (2011) | |
| 53537 | Korafe (Rabade Dialect) | ɣo'nesa | sand | | Smallhorn (2011) | |
| 143011 | Korak | malʌl | | | Z'graggen (1980) | sand |
| 210610 | Korowai | kɑ'ɾe:ɾ̥ | | | Hughes (2009) | |
| 33825 | Kosare | rɩ'ti | | | Heeschen (1978) | |
| 155222 | Kovai | maǥ | | | McElhanon and Voorhoeve (1970) | sand |
| 143021 | Kowaki | sereb | | | Z'graggen (1980) | sand |
| 155231 | Kube | sakesaʔ | | | McElhanon and Voorhoeve (1970) | sand |
| 91283 | Kube | sakesa | sand | | McElhanon (1967) | sand |
| 5709 | Kubo | kowȩ | | | Shaw (1973) | |
| 36258 | Kui | αl'at- | | | Stokhof (1975) | |
| 37780 | Kui (Kiramang Dialect) | sid'α | | | Stokhof (1975) | |
| 36492 | Kula | in'iki | | | Stokhof (1975) | |
| 836 | Kuman | ogupu | | | Trefry (1969) | |
| 155227 | Kumukio | nupi | | | McElhanon and Voorhoeve (1970) | sand |
| 28654 | Kuni-Boazi | ndivind | | | Voorhoeve (1970) | |
| 155179 | Kuni-Boazi (Boazi Dialect) | ⁿdivind | | | McElhanon and Voorhoeve (1970) | sand |
| 165867 | Kuot | ubiem | | | Lindström (2008) | |
| 155198 | Kutong (Sakam Dialect) | morʌk | | | McElhanon and Voorhoeve (1970) | sand |
| 76174 | Lavukaleve | aor | sand | | Tryon & Hackman (1983) | |
| 180038 | Lemio | siriri | | | Z'graggen (1980) | sand |
| 155184 | Madi | namu | | | McElhanon and Voorhoeve (1970) | sand |
| 257087 | Magɨ | misab | | | Daniels (2016) | |
| 143015 | Maia (Pila Dialect) | solob | | | Z'graggen (1980) | sand |
| 143016 | Maia (Saki Dialect) | sorob | | | Z'graggen (1980) | sand |
| 75131 | Mailu | one | | | Saville (1912) | |
| 86097 | Mailu (Asiaoro Dialect) | ʔone | | | Thomson (1975) | |
| 87467 | Mailu (Baibara Dialect) | ʔone | | | Thomson (1975) | |
| 86919 | Mailu (Borebo Dialect) | ʔone | | | Thomson (1975) | |
| 88289 | Mailu (Darava Dialect) | ʔone | | | Thomson (1975) | |
| 88015 | Mailu (Delebai Dialect) | ʔone | | | Thomson (1975) | |
| 87193 | Mailu (Domara Dialect) | ʔone | | | Thomson (1975) | |
| 87741 | Mailu (Geagea Dialect) | ʔone | | | Thomson (1975) | |
