| Acronym | Definition |
|---|
| FOA | Funding Opportunity Announcement (NIH) |
| FOA | Friends of Animals |
| FOA | First of All |
| FOA | Fiber Optic Association |
| FOA | Form of Authorization |
| FOA | Fate of Atlantis (Indiana Jones computer game) |
| FOA | Field Operating Agency |
| FOA | Futures and Options Association |
| FOA | Försvarets Forskningsanstalt (Swedish Defence Research Establishment) |
| FOA | Focus of Attention |
| FOA | Festival of Arts |
| FOA | First Office Application |
| FOA | Formula One Administration Ltd. |
| FOA | Fiber Optic Adapter |
| FOA | Farmers of America |
| FOA | Field Operating Activity |
| FOA | Formatting Objects Authoring (Java application) |
| FOA | Fear of Abandonment (psychology) |
| FOA | Fiber Optic Amplifier |
| FOA | Florida Orchestra Association |
| FOA | Form of Address |
| FOA | Friends of Al-Aqsa |
| FOA | Forward Operating Agency |
| FOA | Friend of Another (anonymous author) |
| FOA | Friends of Afghanistan |
| FOA | Fiber-Optic Attenuator |
| FOA | Front Office Assistant (job title) |
| FOA | Front Office Appearance |
| FOA | Form of Acceptance |
| FOA | Field Operations Assistant |
| FOA | Forced Oil and Air (cooling power transformer) |
| FOA | Free On Air |
| FOA | Failed on Arrival (product defectiveness) |
| FOA | Federal Odometer Act |
| FOA | Fixed-Object-Attachment (highway safety engineering) |
| FoA | Foundation of Annihilation (Counter-Strike gaming clan) |
| FOA | Foramen Ovale Apertum |
| FOA | Friends of Amtrak |
| FOA | Foundation for Outdoor Adventure (Britain) |
| FOA | Failure to Obtain Action |
| FOA | First Over All |
| FOA | Forests Owners' Association (RSA) |
| FOA | Full Operational Assessment |
| FOA | File Originator's Address |
| FOA | Friends of the Argonauts (Canada) |
| FOA | Federal Order Administrator (GSA) |
| FOA | Fitting-Out Activity/Ability/Availability |
| FOA | Forward Operating/Operations Area |
| FOA | Franchise Operating Agreement |
| FOA | Friends of Amy Grant |
| FOA | Friends of Abe |
| FOA | Force of Alliance (Wolrd of Warcraft guild) |
| FOA | Fuzzy Origination Approach |
| FOA | Functioning Outer Aspect (Dental) |
| FOA | Functional Operational Area |
| FOA | Follow-On Acquisition |
| FOA | Fill on Arrival (prescription fulfillment) |
| FOA | Fraternity of Assassins Gaming (gaming guild) |
| FOA | Freaks of America |
| FOA | Freemans of America (gaming clan) |
| FOA | Fresh off the Airplane (Internet slang) |
| FOA | Fuzzy Optimization Algorithm |
| FOA | Fiefdom of Angels (Kevin Max novel) |
| FOA | Foot Orthotic Appliance |
| FOA | Freedom of Association |
| FOA | Faculty of Actuaries (various locations) |
| FOA | Field of Activity (various organizations) |
| FOA | Final Offer Arbitration (aka pendulum arbitration) |
| FOA | Followers of Asura (Age of Conan: Hyborian Adventures; gaming) |
| FOA | Fashion Outlets of America Inc. (Lyndhurst, NJ) |
| FOA | Friends of Angelo (loan program) |