Siri is a surname. Notable people with the surname include:
Alejandro Siri (born 1963), Argentine field hockey player
Florent Emilio Siri (born 1965), French film director
Giuseppe Siri (1906–1989), Italian cardinal
Martin Siri (born 1979), Argentine cricketer
Preecha Siri, Karen-Thai conservationist
Santipap Siri (born 1985), Thai footballer
William Siri (1919–2004), American biophysicist