Jersey: noun: Channel Islander(s)

adjective: Channel Islander

Jordan: noun: Jordanian(s)

adjective: Jordanian

Kazakhstan: noun: Kazakhstani(s)

adjective: Kazakhstani

Kenya: noun: Kenyan(s)

adjective: Kenyan

Kiribati: noun: I-Kiribati (singular and plural)

adjective: I-Kiribati