Klapper is a surname. Notable people with the surname include:
- Bonnie S. Klapper (born 1957), an American lawyer
- David Klapper, co-founder of Finish Line, Inc.
- Gilbert Klapper, a paleontologist
- Ilse von Klapper, wife of William S. Burroughs from 1937 to 1946
- Radu Klapper (1937–2006), an Israeli-Romanian poet and author
- Klapper Hall, an early building at City College of New York
|This page lists people with the surname Klapper. If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.|