Karl Mummenthey
German jurist
- Born: 1906-07-11 (Aue)
- Died: http://www.wikidata.org/.well-known/genid/915699ec3a66368c5b6db1e723f520f1
- Country of citizenship: Germany
- Occupation: jurist
- Member of political party: Nazi Party (since: 1938-01-01)
- Member of: Schutzstaffel; Sturmabteilung
- Participant in: Pohl Trial (role: defendant)
- Employer: DEST (period: 1939-09-01 through 1945-01-01; position held: director); SS Main Economic and Administrative Office (position held: section chief; since: 1939-12-01)