Tozzi is an Italian surname. It may refer to:

• Antonio Tozzi (1736-1812), Italian composer
• Bruno Tozzi (1656-1743), Italian monk and botanist
• Claudio Tozzi (b. 1944), Brazilian artist
• Fausto Tozzi (1921–1978), Italian film actor and screenwriter
• Federigo Tozzi (1883-1920), Italian writer
• Gianni Tozzi (born 1962), Italian former athlete
• Gianpiero Tozzi (b. 1994), Italian footballer
• Giorgio Tozzi (1923-2011), American opera singer
• Humberto Tozzi (1934–1980), Brazilian international footballer
• Jim Tozzi (b. 1938), American lobbyist
• Jim Tozzi (PFFR) (b. 1967), American artist, commercial director, producer, voice actor, and musician
• John T. Tozzi, former rear admiral in the United States Coast Guard
• Mario Tozzi (1895–1979), Italian painter
• Nicoletta Tozzi (1966), former Italian female middle-distance runner
• Ricardo Tozzi (b. 1975), Brazilian actor
• Roberto Tozzi (b. 1958), Italian sprinter who specialized in the 400 metres
• Romano Tozzi Borsoi (b. 1979), Italian footballer
• Silvio Tozzi (1908–?), Italian wrestler
• Tahyna Tozzi (b. 1986), Australian model, singer, and actress
• Umberto Tozzi (b. 1952), Italian singer