Simon Davies is a British privacy advocate and academic from Australia, formerly based in London, UK. Davies was one of the first campaigners in the field of international privacy advocacy, founding the watchdog organisation Privacy International in 1990 and subsequently working in emerging areas of privacy such as electronic visual surveillance, identity systems, border security, encryption policy and biometrics. In 2022, Davies was convicted of child sex offences committed in Sydney in the 1980s, having been wanted by police in New South Wales since 2016.