KRF or KrF may refer to:

• Christian Democratic Party (Norway) (Kristelig Folkeparti, KrF)

• Kataeb Regulatory Forces, Lebanon, 1961-1977

• Korea Research Foundation, later National Research Foundation of Korea

Krypton fluoride, KrF, a short-lived chemical compound

• KrF laser

• Krf, the Serbo-Croatian name for Corfu, Greece