| 57802 | Karaboro, Eastern | ma˧ | | | Wichser (1994) | |
| 55624 | Karon | awɛ | | | Wilson (1961) | |
| 48984 | Kawaiisu | ʔimia | | | Zigmond et al. (1990) | |
| 22235 | Kayardild | ŋumbanji | | | Evans (1995) | |
| 47762 | Kele | ou | | | Lynch et al. (2002) | |
| 58756 | Kemedzung | wə˩ | | | Smoes (2010) | |
| 59820 | Keo (Udiworowatu Dialect) | kau | | | Baird (2002) | |
| 59912 | Keo (Udiworowatu Dialect) | kau | | | Baird (2002) | |
| 49272 | Ket | ū | The form ‘ūk’ is also listed (Georg 2006:163). | | Georg (2006) | |
| 49224 | Kham (Western Parbate) (Takale Dialect) | nɨ̃: | | | Watters (2002) | |
| 45520 | Khmer (Central Dialect) | loːk | | | Haiman (2011) | |
| 46520 | Kimaghima | aŋɡa | | | Boelaars (1950) | |
| 46469 | Kimaghima | aŋɡa | | | Boelaars (1950) | |
| 48744 | Kiowa | ám | | | Adger et al. (2008) | |
| 42328 | Kiwai, Northeast | ro | | | Brown (2009) | |
| 42376 | Kiwai, Southern | roroai | | | Ray (1907) | |
| 59761 | Klon | o- | | | Baird (2008) | |
| 38610 | Klon | V- / 0- | V- before consonant initial stems; 0- before vowel initial stems. | | Baird (2008) | |
| 59763 | Klon | in= | | | Baird (2008) | |
| 59765 | Klon | e- | | | Baird (2008) | |
| 27359 | Klon | V- / 0-, o-, in=, e- | V- for consonant initial stems; 0- initial for vowel-initial stems | | Baird (2008) | |
| 43841 | Koasati | isnón | | | Kimball (1991) | |
| 29910 | Kobon | nöp | | | Davies (1981) | |
| 29909 | Kobon | nɨ | | | Davies (1981) | |
| 29908 | Kobon | ne | | | Davies (1981) | |
| 39085 | Kobon | nöp | | | Davies (1981) | |
| 34867 | Kodeoha | igoo | | | Mead (1999) | |
| 42424 | Koitabu | a | | | Dutton (1975) | |
| 41852 | Kokoda | áiγa | | | de Vries (2004) | |
| 48600 | Kokota | =nigo | | | Palmer (2009) | |
| 57226 | Kolbila | -ə̄ŋ | | | Littig (2009) | |
| 31591 | Kombai | gu | | | de Vries (1993) | |
| 40700 | Kombio | yikn | | | Henry (1992) | |
| 24050 | Komnzo | mbæ | | | Doehler () | |
| 57658 | Konni | fʊ | | | Cahill (1999) | |
| 55536 | Konyagi | wəjə | | | Wilson (2007) | |
| 51612 | Koromfe | ŋkɔ | | | Rennison (1997) | |
| 40940 | Koromira | da | | | Rausch (1912) | |
| 39281 | Korowai | gup | | | van Enk and de Vries (1997) | |
| 29463 | Korowai | gakhata | | | van Enk and de Vries (1997) | |
| 29462 | Korowai | gu | | | van Enk and de Vries (1997) | |
| 29461 | Korowai | gup | | | van Enk and de Vries (1997) | |
| 53779 | Kotiria | bɨ̃ʔɨ̃́ | | | Waltz and Waltz (2000) | |
| 45088 | Koya | niːninni | | | Tyler (1969) | |
| 28958 | Kristang | ku bo | | | Baxter (1988) | |
| 56706 | Krobu | bo˥ | | | Mensah (1983) | |
| 28127 | Kuku Yalanji | yunuñ | | | Patz (2002) | |
| 58042 | Kulango, Bouna | -gʊ | | | Elders (2008) | |
| 42184 | Kunimaipa | ni | | | Geary (1977) | |
| 24182 | Kunja / Bondobol | ᵐbæ | | | Doehler spreadsheet | |
