| Abbreviation | Definition |
|---|---|
| KDN | Kunda |
| KDQ | KOCH: a language of India |
| KDX | Kam: a language of Nigeria |
| KDY | Keder: a language of Indonesia ( Irian Jaya) |
| KDZ | Kwaja: a language of Cameroon |
| KEK | KEKCHI: a language of Guatemala |
| KGZ | Kyrgyzstan |
| KHA | Khasi |
| KHI | Khoisan (Other) |
| KHM | Khmer |
| KHO | Khotanese |
| KIK | Kikuyu |
| KIN | Kinyarwanda |
| KIR | Kirghiz |
| KJA | MLAP: a language of Indonesia (Irian Jaya) |
| KNW | KUNG-EKOKA: A language of Namabia |
| KOK | Konkani |
| KOM | Komi |
| KON | Kongo |
| KOR | Korean |