CRK can refer to:
Aviation Bombardier CRJ 1000 (IATA: CRK), a regional jet built in Canada Clark International Airport (IATA: CRK), Pampanga, Philippines Hong Kong Airlines (ICAO: CRK), Hong Kong SAR
Other Český Radioklub, an amateur radio organization in the Czech Republic Chris Reeve Knives, an American knife manufacturer Cookie Run: Kingdom, a South Korean 2021 RPG mobile game CRK (gene) Plains Cree language (ISO-639-3 code) Republican Circle, a Belgian republican association Chattahoochee Riverkeeper, formerly Upper Chattahoochee Riverkeeper, an environmental advocacy organization Radio Kansai, a radio station in Hyogo Prefecture, Japan
See also Crk (disambiguation)