Capp is a surname. Notable people with the surname include:
*Al Capp (1909–1979), American cartoonist and humorist
*David A. Capp (born 1950), American attorney
*Dick Capp (born 1942), American football player
*Frank Capp (1931–2017), American jazz drummer
*Sally Capp, Australian politician
*Terry Capp, Canadian drag racer
*Thomas Capp (died 1635), English painter and gilder
{{surname, Capp