The meaning of the Acronym FSO is...

FSO is

• Functional Supplementary Objective

More Meanings For FSO:

• File System Object
• Full-Scale Output
• Floating Storage and Offloading
• Flax Seed Oil
• Facilities Service Office
• Flag Service Organization
• Free Space Optics
• Facilities Service Order
• The Flight Safety Organization
• Full Scale Output
• The File Systems Object
• Foreign Service Officer
• Frito Services Officer
• Facility Security Officer
• Floor Support Officer

FSO is also in:

• Electronics
• Food
• General
• International Business
• Ocean Science
• Positions
• Unfiled
• USPS