Gaddis (surname)
Gaddis is a surname. Notable people with the surname include:
- C. J. Gaddis (born 1985), footballer
- Christian Gaddis (born 1984), footballer
- Gadabout Gaddis (1896-1986), television fisherman
- John Lewis Gaddis (born 1939), historian of the Cold War and grand strategy
- Miranda Gaddis, American crime victim
- Thomas E. Gaddis (1908–1984), American author
- Vincent Gaddis, American author
- William Gaddis (1922-1998), American novelist