Gaudio is a surname. People with this surname include:
Bob Gaudio (born 1942), an American singer
Bob Gaudio (American football) (1925–2003), an American football player
Dino Gaudio (born 1957), an American basketball coach
Eugene Gaudio (1886–1920), a cinematographer and brother of Tony
Gastón Gaudio (born 1978), an Argentine tennis player
Ivan Sergei Gaudio (born 1971), an American actor
Tony Gaudio (1883–1951), an Italian-American cinematographer and brother of Eugene