FIOS
| Acronym | Definition |
|---|---|
| FIOS | Fiber Optic Services |
| FIOS | Fiber Optic Services (Verizon) |
| FIOS | Free In/Out Stowed (shipping) |
| FIOS | Finely Integrated Operand Scanning (algorithm) |
| FIOS | Forever in Our Shadow |
| FIOS | Federal Institute of Studies (New Zealand) |
| FIOS | Fellow of the Institute of Swimming (Amateur Swimming Association) |
| FIOS | Flight Inspection Offices (FAA) |
| FIOS | Field Integration and Operational Support |