| 73699 | Inoke-Yate | múki | | | Scott (1978) | |
| 17228 | Ipiko | máhine | | | Franklin (1973) | |
| 17211 | Ipiko | (ronʔoni)? | | | Franklin (1973) | |
| 193761 | Isabi | karʌu | | | Z'graggen (1980) | many |
| 125590 | Isebe | kurum | | | Z'graggen (1980) | many |
| 181494 | Jilim | kilʌy | | | Z'graggen (1980) | many |
| 214907 | Kaiy | siɾi^ko | | | Clouse (1997) | |
| 6238 | Kaki Ae | himiri | | | Brown (1973) | |
| 195726 | Kalam | koŋay | | | Pawley (2013) | |
| 3321 | Kaluli | modoo | | | Franklin and Voorhoeve (1973) | |
| 16763 | Kaluli | mɔtɔ | | | Shaw (1986) | |
| 73691 | Kamano | hákare | | | Scott (1978) | |
| 73690 | Kamano | máfäka' | | | Scott (1978) | |
| 73689 | Kamano | máka' | | | Scott (1978) | |
| 1764 | Kamasa | tatau | | | Lloyd (1973) | |
| 27396 | Kamula | habřoma | | | Reesink (1976) | |
| 16563 | Kamula | hʌpɔľɔma | | | Shaw (1986) | |
| 125584 | Kare | ipɛŋgu | | | Z'graggen (1980) | many |
| 16463 | Kasua | hitɛlʌ | | | Shaw (1986) | |
| 2064 | Kasua | hirirakiye | | | Franklin and Voorhoeve (1973) | |
| 90750 | Kâte | bocyaha | many | | McElhanon (1967) | many |
| 214910 | Kaure | kɔsü | | | Clouse (1997) | |
| 29414 | Kaure | njahiŋ | | | Voorhoeve (1971) | |
| 17520 | Kawacha | tatave | | | Lloyd (1973) | |
| 125587 | Kein | asiuw | | | Z'graggen (1980) | many |
| 4369 | Keoru-Ahia (Aheave Dialect) | oarielei | | | Brown (1973) | |
| 4159 | Keoru-Ahia | oaria | | | Brown (1973) | |
| 6887 | Kerewo | godo godo | | | Wurm (1973) | |
| 181472 | Kesawai | nuːbu | | | Z'graggen (1980) | many |
| 33293 | Keuw | túud-yô | | | Kamholz (2012) | |
| 6475 | Kibiri | koipau | | | Wurm (1973) | |
| 214901 | Kirikiri | ɸaɾu | | | Clouse (1997) | |
| 214900 | Kirikiri (Faia Dialect) | kuɾakeβe | | | Clouse (1997) | |
| 144421 | Kobol | ɛbiot | | | Z'graggen (1980) | many |
| 144420 | Kobol | ubiʌp | | | Z'graggen (1980) | many |
| 196140 | Kobon | kabö | - | | Pawley (2013) | |
| 165090 | Kobon | 'iɾu | | | Davies and Comrie (1985) | many |
| 232006 | Kol | pi'tɒuoŋ | | | SIL (1981) | |
| 90745 | Komba | biwirâ | many | | McElhanon (1967) | many |
| 210867 | Komyandaret | æˈwitɔbɔ | | | Hughes (2009) | |
| 16663 | Konai | su | | | Shaw (1986) | |
| 144405 | Korak | patʌr | | | Z'graggen (1980) | many |
| 210663 | Korowai | ɓɑ'jidɑ: | | | Hughes (2009) | |
| 144415 | Kowaki | abiʔabi | | | Z'graggen (1980) | many |
| 90751 | Kube | sasara | many | | McElhanon (1967) | many |
| 5758 | Kubo | go̧go̧ | | | Shaw (1973) | |
| 7230 | Kubo | gõgõ | | | Shaw (1986) | |
| 818 | Kuman | meře | | | Trefry (1969) | |
| 28613 | Kuni-Boazi | mɑi̯mba | | | Voorhoeve (1970) | |
| 165092 | Kyaka | malu | | | Davies and Comrie (1985) | many |
