Richard Sonnenfeldt
German language interpreter and translator (1923-2009)

- Born: 1923-07-03 (Berlin)
- Died: 2009-10-09 (Port Washington)
- Country of citizenship: Germany; United States of America (since: 1943-01-01)
- Occupation: engineer; interpreter; translator
- Participant in: Nuremberg trials (role: interpreter)
- Significant person: George Wilson Shaffer (role: friend; since: 1942-01-01); Leo Kanner (role: friend; since: 1941-01-01)
- Military rank: private
- Military branch: United States Army (military unit: Seventh Army)
- Employer: New York University Tandon School of Engineering; Office of Strategic Services
- Educated at: Bunce Court School
- Residence: Port Washington
- VIAF ID: https://viaf.org/viaf/85764979
- ISNI: https://isni.org/isni/0000000114767139
- WorldCat Identities ID: https://worldcat.org/identities/lccn-n2006044894
- Library of Congress authority ID: https://id.loc.gov/authorities/names/n2006044894