| Acronym | Definition |
|---|
| FA | First Aid |
| FA | For Auction |
| FA | Firma (German: company) |
| FA | Football Association (England) |
| FA | Football Association (UK) |
| FA | Fine Arts |
| FA | Financial Aid |
| FA | Falkland Islands (Islas Malvinas) |
| FA | Free Agent (baseball, football, etc.; player who may sign with any team) |
| FA | Firearms (half-life modification) |
| FA | Financial Advisor |
| FA | Fatty Acid |
| FA | Finanzamt (German: revenue office) |
| FA | Field Artillery |
| FA | FanArt |
| FA | Flash Animation |
| FA | Flight Attendant |
| FA | Fixed Assets |
| FA | Fallen Angel |
| FA | Fire Alarm |
| FA | Foreign Agent (network node) |
| FA | Family Assistance |
| FA | Functional Analysis |
| FA | Fiona Apple (singer) |
| FA | Final Approval |
| FA | Factory Automation |
| FA | Area Forecast (aviation) |
| FA | Food Allergy |
| FA | First Article |
| FA | Focus Area |
| FA | False Alarm |
| FA | Failure Analysis |
| FA | Factor Analysis |
| FA | Fully Automatic |
| FA | Formic Acid |
| FA | Fanconi Anemia (form of aplastic anemia) |
| FA | Fly Ash (mineral admixture for concrete) |
| FA | Fat Albert (fictional character) |
| FA | Functional Area |
| FA | Forced Air |
| FA | Certified Mail (Scott Catalogue prefix; philately) |
| FA | fractional anisotropy |
| FA | Functional Assessment |
| FA | Fluorescent Antibody (laboratory virus testing) |
| FA | Final Approach |
| FA | Fluorescein Angiography (retinal, choroidal and iris blood vessels testing) |
| FA | Final Assembly |
| FA | Function Analysis (product engineering / development tool) |
| FA | Farm Aid |
| FA | Fourier Analysis |
| FA | Field Activities |
| FA | Forte Agent |
| FA | Funds Allocated (USACE) |
| FA | Financial Assurance |
| FA | Fame Academy (UK BBC series) |
| FA | Full Armor (anime) |
| FA | Fund Accounting |
| FA | Final Acceptance |
| FA | Fiscal Agent (Medicaid) |
| FA | Finally Approved (sarcastic variation of Final Approval) |
| FA | Forward Area |
| FA | Full Adder |
| FA | Friends Always |
| FA | Fibrilacion Auricular (Spanish: Atrial Fibrillation) |
| FA | Fiber Adapter |
| FA | Family Allowance |
| FA | Feasibility Analysis |
| FA | Food Addicts in Recovery Anonymous (Woburn, MA) |
| FA | Fanny Adams |
| FA | Fulvic Acid |
| FA | Federal Agent |
| FA | Farmers' Almanac |
| FA | Fur Affinity (web site) |
| FA | Faith Alive |
| FA | Family Auto (car dealers) |
| FA | Field Assistance |
| FA | Fredericksburg Academy |
| FA | Framework Approach |
| FA | Fat Admirer |
| FA | Functional Acknowledgment |
| FA | Frankford Arsenal (PA; ammunition headstamp) |
| FA | Final Art (desktop publishing/printing/design; approved by client and ready to go to production) |
| FA | feasibility assessment (US DoD) |
| FA | Financial Agent |
| FA | Fuel Assembly |
| FA | Federal Association |
| FA | Felonious Assault (law enforcement) |
| FA | Faculty Assistant |
| FA | Fireman Apprentice |
| FA | Foreign Assistance Act of 1961 |
| FA | Feudal Age |
| FA | Failure Alarm |
| FA | Full Arc |
| FA | Freakin' A! (polite form) |
| FA | Focus Alert |
| FA | FictionAlley.org |
| FA | Fairchild Aircraft |
| FA | Final Alert (mapmaking program) |
| FA | Fuse Alarm |
| FA | Frontal Aviation |
| FA | Flanking Attack |
| FA | Fulbright Association |
| FA | French Angora (rabbit) |
| FA | Finance Academy under the Government of the Russian Federation |
| FA | Functional Allocation |
| FA | Formal Advertising |
| FA | Fighter Allocator |
| FA | Fibonacci Association |
| FA | Factories Act 1961 (UK) |
| FA | Forecast Analyst |
| FA | Fiery Avenger (Everquest game) |
| FA | Flexible Alerting |
| FA | Frankfort Arsenal (Philadelphia, Pennsylvania) |
| FA | Functional Administrator |
| FA | Friederich's Ataxia |
| FA | Forced Answer |
| FA | Field Authorization |
| FA | Fluorescein Angiogramic Angiography |
| FA | Fenton's Approximation (Algorithm) |
| FA | Focus Amplifier |
| FA | Force Analyzer |
| FA | Foreign Military Affairs |
| FA | First Aid/Medical Aid Station |
| FA | Fury Assembly |
| FA | Filiae Amatissimae (Latin: To (My) Beloved Daughter, epigraphy) |
| FA | Frequency Agile/Agility |