Croydon Libertarians was an anarchist group based in the south London borough of Croydon in the early 1970s. According to former member, Julian Turner, who got involved in 1970, the organisation folded around 1974. He explained this occurred as the group's more active members got more involved with squatting.
The group was spied on by HN298 ‘Michael Scott’. One of Scott’s reports concerned an anti-car direct action that the group organised. The group was also listed as one of the main targets for the SDS in its 1972 Annual Report.

Scott, who spied on this group and others in this area of London, claimed there was an overlap in membership between Croydon Libertarians, the Young Liberals and the Commitment group. Former Croydon Libertarian Kevin Eady has denied this, saying the group had an anarchist outlook that set it apart from the other two groups.