CAF may refer to:* Cactus Air Force, American aviation force during the early stages of the Battle of Guadalcanal Caisse d'allocations familiales, French governmental agencies for family-supporting subsidies Cambridge Application Form, a university application form filled in by students applying to study at the University of Cambridge, in addition to a regular UCAS form Canadian Forces, (Canadian Armed Forces), the unified branches of the Canadian Air Force, Army, and Navy Car Audio Forum, a… (More on Caf)