Kleinfeld is a surname of German origin. The name means "little field" or "small field".
People surnamed Kleinfeld
- Andrew Kleinfeld (born 1945), American federal judge, husband to Judith
- Gerald R. Kleinfeld, founder of the German Studies Association
- Judith Kleinfeld (1944–2025), American professor of psychology and author, wife to Andrew
- Klaus Kleinfeld (born 1957), German businessman
- Philip M. Kleinfeld (1894–1971), New York politician and judge
See also
- Klinefelter