Kastner
Kastner is a German language surname, originating from the medieval occupation Kastner ("bursary officer"). It may refer to:
- Bruno Kastner - German actor
- Elliott Kastner - American film producer
- Jean-Georges Kastner - French composer and musicologist.
- Karl Wilhelm Gottlob Kastner, chemist, natural scientist
- Rudolf Kastner, head of the Hungarian Aid and Rescue Committee during the Holocaust
- Kastner train, after Rudolf Kastner