The zone libre (French pronunciation: [zon libʁ], free zone) was a partition of the French metropolitan territory during World War II, established at the Second Armistice at Compiègne on 22 June 1940. It lay to the south of the demarcation line and was administered by the French government of Philippe Pétain based in Vichy, in a relatively unrestricted fashion. To the north lay the zone occupée ("occupied zone"), in which the powers of Vichy France were severely limited.
In November 1942, the zone libre was invaded by the German and Italian armies in Case Anton, as a response to Operation Torch, the Allied landings in North Africa. Thenceforth, the zone libre and zone occupée were renamed the zone sud (southern zone) and zone nord (northern zone) respectively. From then on both were under German military administration.