HRK-Croatian Kuna. Croatia, Kuna. The Croatian Kuna is the currency of Croatia. Our currency rankings show that the most popular Croatia Kuna exchange rate is the HRK to EUR rate.The currency code for Kuna is HRK, and the currency symbol is kn. Below, you'll find Croatian Kuna rates and a currency converter.You can also subscribe to our currency newsletters with daily rates and analysis, read the XE Currency Blog, or take HRK rates on the go with our XE Currency Apps and website.elow, you'll find Croatian Kuna rates and a currency converter. You can also subscribe to our currency newsletters with daily rates and analysis, read the XE Currency Blog, or take HRK rates on the go with our XE Currency Apps and website.