Bordels Mobiles de Campagne or Bordel Militaire de Campagne (both abbreviated to BMC) were mobile brothels used during World War I, World War II and the First Indochina War to supply prostitution services to French soldiers fighting in areas where brothels were unusual, such as at the front line or in isolated garrisons. The BMCs were major drivers towards the creation of prostitution regulations within the French army.

These mobile brothels were in some cases officially organised by the army. They consisted of large trailer trucks in which up to ten women would work. The first references to these BMCs were in World War I, and they are noted particularly in the Indochina War and the Algerian War.

Almost absent in France after World War II, there were many during the Indochina War and the war in Algeria. Subsequently, only the Foreign Legion still used them but closed the last BMC on French soil, in Guyana, in 1995. The BMC in Djibouti was still operating until 2003.