Socx (; from Flemish; Soks in modern Dutch spelling) is a commune in the Nord department in northern France. The population in 2019 was 923.
Socx is around south of Dunkirk. Its area is .
The current mayor is Alexandre Rommelaere, elected in 2020. Previous mayors were Christian Ley (term of office: 2008âÂÂ2020) and Charles Vandaele (2001âÂÂ2008).
Socx was twinned with Caton, Lancashire, United Kingdom on 12 April 2008.