Leopold Felsen
American physicist
- Born: 1924-05-07 (Munich)
- Died: 2005-09-24 (Boston)
- Country of citizenship: United States of America
- Occupation: physicist; university teacher
- Member of: National Academy of Engineering
- Employer: Boston University; New York University Tandon School of Engineering
- Educated at: New York University Tandon School of Engineering
- VIAF ID: https://viaf.org/viaf/109972003
- ISNI: https://isni.org/isni/0000000116983636
- WorldCat Identities ID: https://worldcat.org/identities/lccn-n84152133
- Library of Congress authority ID: https://id.loc.gov/authorities/names/n84152133