HRK may refer to: HRK (gene), a human gene The ISO 4217 code of Croatian kuna, the currency of Croatia from 1994 to 2023 Haruku language (ISO 639-3 code hrk), spoken in Indonesia Heidelberger RK, a German rowing club Heinz Rudolf Kunze (born 1956), German singer and writer Hirok railway station, in Balochistan, Pakistan German Rectors' Conference (German: ) HRK, a Rockwell scale of materials' hardness Kharkiv International Airport, in Ukraine, IATA code