| 20019 | Kalabra | kala | | | Voorhoeve (1975) | |
| 195870 | Kalam | ñg | | | Pawley (2013) | |
| 158471 | Kaluli (Bosavi Dialect) | hoŋ | | | McElhanon and Voorhoeve (1970) | water |
| 3269 | Kaluli | hoon | | | Franklin and Voorhoeve (1973) | |
| 16711 | Kaluli | hɔ̃n | | | Shaw (1986) | |
| 35951 | Kamang | iil | | | Stokhof (1975) | |
| 37006 | Kamang (Kolomane Dialect) | ir'i | | | Stokhof (1975) | |
| 38529 | Kamang (Langkuru Dialect) | ir'i | | | Stokhof (1975) | |
| 38295 | Kamang (Letley Dialect) | il'ɩ | | | Stokhof (1975) | |
| 38177 | Kamang (Pido 1 Dialect) | il | | | Stokhof (1975) | |
| 37943 | Kamang (Pido 2 Dialect) | il | | | Stokhof (1975) | |
| 74759 | Kamano | ti | | | Scott (1978) | |
| 1712 | Kamasa | kwe('ma) | | | Lloyd (1973) | |
| 21418 | Kamberau | moda | | | Voorhoeve (1975) | |
| 21378 | Kamoro | mi | | | Voorhoeve (1975) | |
| 158444 | Kamoro | mi | | | McElhanon and Voorhoeve (1970) | water |
| 16511 | Kamula | yu | | | Shaw (1986) | |
| 27341 | Kamula | yu | | | Reesink (1976) | |
| 237035 | Kanggape | niam | | | Foley (2005) | |
| 21064 | Kanum | ataka | | | Voorhoeve (1975) | |
| 19574 | Kapauri | bu | | | Voorhoeve (1975) | |
| 224801 | Kapriman | sagim | | | Dye et al (1968) | |
| 21779 | Karas | per | | | Voorhoeve (1975) | |
| 243931 | Karawa | you | | | Laycock (1968) | |
| 124321 | Kare | ži: | | | Z'graggen (1980) | water |
| 34485 | Karon Dori | aya | | | Miedema & Welling (1985) | |
| 23623 | Karon Dori | aya | | | Voorhoeve (1975) | |
| 16411 | Kasua | hʌnɔ̃ | | | Shaw (1986) | |
| 2012 | Kasua | hano | | | Franklin and Voorhoeve (1973) | |
| 91226 | Kâte | opâ | water | | McElhanon (1967) | water |
| 158543 | Kâte (Mâgobineng Dialect) | opu | | | McElhanon and Voorhoeve (1970) | water |
| 158541 | Kâte (Wâmora Dialect) | meso | | | McElhanon and Voorhoeve (1970) | water |
| 158545 | Kâte (Wemo Dialect) | opo | | | McElhanon and Voorhoeve (1970) | water |
| 29451 | Kaure | gomesi | | | Voorhoeve (1971) | |
| 213757 | Kaure | biq | | | Clouse (1997) | |
| 19452 | Kaure | bi | | | Voorhoeve (1975) | |
| 22587 | Kauwera | pitao | | | Voorhoeve (1975) | |
| 17468 | Kawacha | aaya | | | Lloyd (1973) | |
| 29263 | Kayagar | oxom | | | Voorhoeve (1971) | |
| 20623 | Kayagar | oxom | | | Voorhoeve (1975) | |
| 236718 | Kayan | ŋarum | | | Foley (2005) | |
| 124325 | Kein | že | | | Z'graggen (1980) | water |
| 21859 | Kemberano | tair | | | Voorhoeve (1975) | |
| 25928 | Kemtuik | bu | | | Voorhoeve (1975) | |
| 4317 | Keoru-Ahia (Aheave Dialect) | ma | | | Brown (1973) | |
| 4107 | Keoru-Ahia | ma | | | Brown (1973) | |
| 6836 | Kerewo | obo | | | Wurm (1973) | |
| 180322 | Kesawai | yʌ | | | Z'graggen (1980) | water |
| 33600 | Ketengban | me | water, river | | Heeschen (1978) | |
| 33420 | Keuw | yél-yò | | | Kamholz (2012) | |
