FSY

AcronymDefinition
FSYFor the Strength of Youth (Church of Jesus Christ of Latter-Day Saints)
FSYFarrar, Straus and Young (publishing; now Farrar, Straus and Giroux)
FSYForsys Metals Corp (uranium exploration; Toronto, Ontario, Canada)
FSYFédération Suisse de Yoga (French: Swiss Yoga Federation)
FSYFrame Sync