Leonard Davis may refer to:
- Leonard Davis (American football) (born 1978), American football offensive lineman, 2000–2012
- Leonard Davis (judge) (born 1948), American district court judge in Texas
- Leonard Davis (musician) (1905–1957), American jazz trumpeter
- Leonard Davis, American businessman; founder of Colonial Penn life insurance company
- Leonard Davis Institute of Health Economics, University of Pennsylvania
- Leonard Davis School of Gerontology, University of Southern California