The meaning of the Acronym FSO is...

FSO is

• Flag Service Organization
• Free Space Optics
• Facilities Service Order
• The Flight Safety Organization
• Full Scale Output
• The File Systems Object

More Meanings For FSO:

• Full-Scale Output
• Floating Storage and Offloading
• Foreign Service Officer
• Frito Services Officer
• Facility Security Officer
• Floor Support Officer
• Footprint Shape Optimization
• FlightSimulation.org
• Fox Sports Ohio
• File System Object
• Fire Support Officer
• Facility Security Officer
• Flight Safety Officer
• Functional Support Office
• Flotilla Staff Officer

FSO is also in:

• Electronics
• General
• International Business
• Law
• Military
• Non-Profit Organizations
• Ocean Science
• Positions
• TV Stations