Noun: Kazakhstani(s)
Adjective: Kazakhstani
Noun: Kenyan(s)
Adjective: Kenyan
Noun: I-Kiribati (singular and plural)
Adjective: I-Kiribati
Noun: Korean(s)
Adjective: Korean
Noun: Korean(s)
Adjective: Korean
Noun: Kosovar (Albanian), Kosovac (Serbian), Kosovan
Adjective: Kosovar (Albanian), Kosovac (Serbian), Kosovan
Noun: Kuwaiti(s)
Adjective: Kuwaiti
Noun: Kyrgyzstani(s)
Adjective: Kyrgyzstani