| Acronym | Definition |
|---|
| EA | Expert Advisor |
| EA | Electronic Arts |
| EA | Enterprise Architecture |
| EA | Environmental Assessment |
| EA | Each |
| EA | Environment Agency (UK; formerly National Rivers Authority) |
| EA | Enrolled Agent (IRS) |
| EA | East Africa |
| EA | Activation Energy (in Electron Volts) |
| EA | Electronic Attack (previously ECM) |
| EA | Early Access (software) |
| EA | Enterprise Agreement |
| EA | Executive Assistant |
| EA | Economic Analysis |
| EA | Elastane (fiber) |
| EA | Emergency Assistance |
| EA | El Alacran |
| EA | Error Analysis (mathematics) |
| EA | Electron Affinity (chemistry) |
| EA | Educational Administration |
| EA | Euro Area (various organizations) |
| EA | Early Action |
| EA | Ecosystem Approach |
| EA | European Co-operation for Accreditation (European community bodies) |
| EA | Employment Agreement |
| EA | Equal Access |
| EA | Evolutionary Algorithm |
| EA | Engineers Australia |
| EA | External Affairs |
| EA | Elevation Angle |
| EA | Eastern Airlines |
| EA | Executive Agent |
| EA | Engineering Analysis |
| EA | Epileptiform Activity (neurology) |
| EA | Extramarital Affair |
| EA | Early Adopter |
| EA | Episcopal Academy (Pennsylvania) |
| EA | Effective Altruism (movement) |
| EA | Effective Address (Von Neumann cycle step) |
| EA | Elective Abortion (also seen as EAb) |
| EA | Economic Affairs |
| EA | Ethan Allen |
| EA | Earth Action |
| EA | Environmental Action |
| EA | Enemy Aircraft |
| EA | Entered Apprentice (masonry) |
| EA | Earth Alliance (anime; gaming) |
| EA | Electricity Association (UK) |
| EA | Environment Australia |
| EA | Evangelical Alliance |
| EA | Endless Ages (MMORPG) |
| EA | Estimated Average (projection) |
| EA | Executive Agency |
| EA | Enumeration Area (Canada census boundary) |
| EA | Electro-Absorption (modulator) |
| EA | Emergency Action(s) |
| EA | Engineering Automation |
| EA | Educate America |
| EA | Energy Absorption |
| EA | Executive Aircraft |
| EA | Education Austin |
| EA | Early Availability |
| EA | Edgewood Area (of Aberdeen Proving Ground) |
| EA | Ensiapu (Finnish: First Aid) |
| EA | External Access (assembly language directive) |
| EA | Executing Agency |
| EA | Enemy Action |
| EA | En Anderen (Dutch: and others) |
| EA | Escrow Account |
| EA | Energy Assurance (US FEMA) |
| EA | Extended Attribute |
| EA | Electronics Assembly |
| EA | Expenditure Authorization |
| EA | Environmental Auditing |
| EA | Entreprise Adaptée (French: Adapted Enterprise) |
| EA | Equitable Adjustment (contract) |
| EA | Entrepreneur Association |
| EA | Encyclopedia Americana |
| EA | Enrolled Actuary |
| EA | Exposure Analysis |
| EA | Engineering Aide (US Navy rating) |
| EA | Electric Actuator |
| EA | Episodic Ataxia |
| EA | Endometriosis Association |
| EA | Extended Address |
| EA | Emotional Affair |
| EA | Ejército del Aire (Spanish Air Force) |
| EA | Evolutionary Acquisition |
| EA | Employee Agent (insurance) |
| EA | Exchange Access (Bellcore) |
| EA | Engineering Assistant |
| EA | Electromagnetic Anomaly |
| EA | Employment Access (National Disability Conference) |
| EA | External Alarm |
| EA | Engineer Rear Admiral (military rank) |
| EA | Ever Active |
| EA | Experimental Activities |
| EA | Environmental Assurance |
| EA | Exclusion Area |
| EA | Exploration Asset |
| EA | Emergency Activities (attendance code) |
| EA | Enforceable Agreement |
| EA | Estate Analysis |
| EA | Emerging Adulthood (behavioral science) |
| EA | Emergency Authority |
| EA | Editorial Alteration |
| EA | Eternal Arcadia (Japanese videogame) |
| EA | Ejército Argentino (Argentinian Army) |
| EA | Expenditure Authority |
| EA | Ecole de l'Air (French) |
| EA | Experimental Agent |
| EA | Engagement Area |
| EA | Enlisted Accession (US Air Force) |
| EA | Electronic Analysis |
| EA | Equal Angle |
| EA | Endangerment Assessment |
| EA | Enlazando Alternativas (Spanish: Linking Alternatives) |
| EA | Engineering Ambassadors |
| EA | Enforcement Agreement |
| EA | Energy Alpha (Wilhelm Reich) |
| EA | Executable Architecture |
| EA | Employment Allowance (student financial aid) |
| EA | Equipment Alignment |
| EA | Emergency Announcement |
| EA | Engineering Assignment |
| EA | Evaluation Authority |
| EA | Épreuves d'Artiste (French: artist's proof) |
| EA | Engineering Authorization |
| EA | Everyplace Access (IBM) |
| EA | Escrowed Authenticator (cryptography) |
| EA | Excitation-Autoionization |
| EA | Extended Arrangement (IMF) |
| EA | Educator Ambassador |
| EA | Euclidian Algorithm |
| EA | Jeff Ellis & Associates (lifeguard certification company) |
| EA | Expedited Data Acknowledgment (ANSI, ITU-T) |
| EA | Enlisted Aviator |
| EA | Ensemble Architecture (Vocaltel) |
| EA | Extended Address Field Bit (ISDN, ITU-T) |
| EA | External Associate |
| EA | Examining for Aphasia |
| EA | Emergency/Enforcement Action |
| EA | Eigenmächtig Abwesend (German) |
| EA | Equilibrated Aggregate (interplanetary dust particle) |
| EA | Enginering Analysis |
| EA | Engineering Aide/Assistance |
| EA | Epileptic Arousal Reaction (neurology) |
| EA | Eskilstuna, City, Sweden |