Robert Kettner
German prosecutor; affiant in the Judges' Trial
- Born: 1902-06-19 (Magdeburg)
- Occupation: prosecutor (location: Düsseldorf)
- Significant person: Günther Joël (role: colleague)
- Employer: Reich Ministry of Justice
- Place of detention: Aachen (date: 1947-01-01)
- Residence: Cologne