ISK may mean: Icelandic króna, by ISO 4217 currency code Internationaler Sozialistischer Kampfbund, former German socialist party Interstellar Kredit in the gameplay of Eve Online International School of Kabul, Afghanistan International School of Kenya, Nairobi International School of Koje, South Korea International School of Kraków, Poland International School of Kuantan, Malaysia Islamic State of Iraq and the Levant – Khorasan Province, sometimes referred to as Islamic State Khorasan (ISK or IS-K)