Fritz Lenz
German geneticist and professor
- Born: 1887-03-09 (Redło, Goleniów County)
- Died: 1976-07-06 (Göttingen)
- Country of citizenship: Germany
- Occupation: anthropologist; geneticist; military physician; university teacher
- Member of political party: Nazi Party
- Member of: German Academy of Sciences Leopoldina
- Participant in: Nuremberg Medical Trial (date: 1947-01-27; role: affiant)
- Significant person: Helmut Poppendick (role: acquaintance; since: 1934-01-01)
- Employer: Humboldt University of Berlin; Kaiser Wilhelm Institute of Anthropology, Human Heredity, and Eugenics; Ludwig Maximilian University of Munich (role: professor; since: 1923-01-01); University of Göttingen (role: professor; since: 1946-11-01)
- Educated at: University of Freiburg
- Residence: Göttingen (date: 1947-01-27)
- VIAF ID: https://viaf.org/viaf/35251473
- ISNI: https://isni.org/isni/0000000108873736
- WorldCat Identities ID: https://worldcat.org/identities/lccn-n84186806
- Library of Congress authority ID: https://id.loc.gov/authorities/names/n84186806