Languages:
| Isocode | Glottocode | Language | Classification | Count |
|---|---|---|---|---|
| kyo | Klon | T, A, Alor | 259 | |
| kfz | Koromfe | N, A, V, N, G, C, N, Kurumfe | 48 | |
| gvn | Kuku Yalanji | A, P, N, Pama-Maric | 76 | |
| xwa | Kwaza | Language isolate | 48 | |
| gvc | Kotiria | 48 | ||
| kig | Kimaghima | T, Kolopom | 88 | |
| Kuuku Ya'u | 48 | |||
| ktg | Kalkutungu | A, P, N, Kalkatungic | 76 | |
| kma | Konni | N, A, V, N, G, C, N, O, Buli-Koma | 48 | |
| kqi | Koitabu | T, S, K, Koiaric | 48 | |
| cwt | Kuwaataay (Diembering Dialect) | N, A, A, N, B, J, J, Kwatay | 44 | |
| gww | Kwini | A, Worrorran | 76 | |
| cou | Konyagi | N, A, A, N, E, Tenda | 44 | |
| gyd | Kayardild | A, Tangkic | 78 | |
| kgp | Kaingang | J, S, Kaingang | 48 |