Jersey
Jersey pound
note: the British pound is also legal tender
Jordan
Jordanian dinar (JOD)
Kazakhstan
tenge (KZT)
Kenya
Kenyan shilling (KES)
Kiribati
Australian dollar (AUD)
Korea, North
North Korean won (KPW)
Korea, South
South Korean won (KRW)
Kosovo
euro (EUR); Serbian Dinar (RSD) is also in circulation
Kuwait
Kuwaiti dinar (KD)
Kyrgyzstan
som (KGS)