RFK
RFK is an abbreviation for:
- Space-filling curve, a special case of the FASS curve
- Rules for formal cataloging, a library set of rules, see Rules for alphabetical cataloging
- Reichsfilmkammer , German authority during the Nazi era
- Rheinhessen-Fachklinik Alzey , a treatment center for psychiatry, psychotherapy and neurology in Alzey
- Rigas FK , former football club from Riga (not to be confused with FK Riga )
- Robert F. Kennedy (1925–1968), American politician
- Rollang Field , IATA code for the airport at Rolling Fork , Mississippi