| 77717 | Klon | tor | | | Baird (2008) | |
| 77686 | Klon | plek | | | Baird (2008) | |
| 213321 | Kirikiri (Faia Dialect) | ki | | | Clouse (1997) | |
| 213322 | Kirikiri | ki^ | | | Clouse (1997) | |
| 237088 | Kire | xar | | | Foley (2005) | |
| 159519 | Kinalakna | hiwit | | | McElhanon and Voorhoeve (1970) | bone |
| 19743 | Kimaghima | duno | | | Voorhoeve (1975) | |
| 6414 | Kibiri | wei | | | Wurm (1973) | |
| 33188 | Keuw | ntyéns-yô | | | Kamholz (2012) | |
| 33607 | Ketengban | yo | | | Heeschen (1978) | |
| 177623 | Kesawai | a:se | | | Z'graggen (1980) | bone |
| 6827 | Kerewo | horo | | | Wurm (1973) | |
| 4098 | Keoru-Ahia | iki'i | | | Brown (1973) | |
| 4308 | Keoru-Ahia (Aheave Dialect) | uki | | | Brown (1973) | |
| 25897 | Kemtuik | don | | | Voorhoeve (1975) | |
| 21828 | Kemberano | toke | | | Voorhoeve (1975) | |
| 121346 | Kein | pahi- | | | Z'graggen (1980) | bone |
| 236774 | Kayan | gagar | | | Foley (2005) | |
| 29199 | Kayagar | nəmop | | | Voorhoeve (1971) | |
| 20592 | Kayagar | namop | | | Voorhoeve (1975) | |
| 17459 | Kawacha | yakɨna | | | Lloyd (1973) | |
| 22556 | Kauwera | kak | | | Voorhoeve (1975) | |
| 213333 | Kaure | laq | | | Clouse (1997) | |
| 29384 | Kaure | loa | | | Voorhoeve (1971) | |
| 19421 | Kaure | era | | | Voorhoeve (1975) | |
| 159538 | Kâte (Wemo Dialect) | sieʔ | | | McElhanon and Voorhoeve (1970) | bone |
| 159537 | Kâte (Wâmora Dialect) | siaʔ | | | McElhanon and Voorhoeve (1970) | bone |
| 159536 | Kâte (Mâgobineng Dialect) | siaʔ | | | McElhanon and Voorhoeve (1970) | bone |
| 91632 | Kâte | siec- | (its) bone | | McElhanon (1967) | (its) bone |
| 2003 | Kasua | ki | | | Franklin and Voorhoeve (1973) | |
| 16402 | Kasua | ki: | | | Shaw (1986) | |
| 23592 | Karon Dori | beti | | | Voorhoeve (1975) | |
| 34454 | Karon Dori | patay | | | Miedema & Welling (1985) | |
| 121343 | Kare | pasa:ga | | | Z'graggen (1980) | bone |
| 243724 | Karawa | lakə | | | Laycock (1968) | |
| 21748 | Karas | kaŋbe | | | Voorhoeve (1975) | |
| 224892 | Kapriman | sibevam | | | Dye et al (1968) | |
| 19543 | Kapauri | uw | | | Voorhoeve (1975) | |
| 21033 | Kanum | mba:r | | | Voorhoeve (1975) | |
| 237086 | Kanggape | ɣavaŋ | | | Foley (2005) | |
| 16502 | Kamula | ɛľu | | | Shaw (1986) | |
| 27332 | Kamula | ɛro | | | Reesink (1976) | |
| 159437 | Kamoro | emae | | | McElhanon and Voorhoeve (1970) | bone |
| 21347 | Kamoro | emae | | | Voorhoeve (1975) | |
| 21387 | Kamberau | eʔera | | | Voorhoeve (1975) | |
| 32249 | Kambaira | imu'kami | | | SIL () | |
| 1703 | Kamasa | yakina | | | Lloyd (1973) | |
| 72361 | Kamano | yäferiná | | | Scott (1978) | |
| 37989 | Kamang (Pido 2 Dialect) | sɔl | | | Stokhof (1975) | |
| 38223 | Kamang (Pido 1 Dialect) | n'ɛsɔl | | | Stokhof (1975) | |
