| Acronym | Definition |
|---|
| FDSO➣Federation of Disability Sports Organisations (Wakefield, West Yorkshire, England, UK) |
| FDSO➣Fast Data Set Organizer |
| FDSO➣Flight Standards District Office (US FAA) |
| FDSO➣Fully Diluted Shares Outstanding |
| FDSO➣Full Diagonal Second-Order |
| FDSO➣Force Development Support Office (US Air Force) |
| FDSO➣Fuel Distribution Systems Operator |