| Acronym | Definition |
|---|
| ECP | Engineering Change Proposal |
| ECP | Enhanced Capability Port (type of computer parallel port) |
| ECP | Electromagnetic Compatibility Program |
| ECP | Electronic Communications in Probability |
| ECP | Educational and Counselling Psychology (McGill University; Canada) |
| ECP | École Centrale Paris (Paris, France) |
| ECP | Emerging Capital Partners (Washington, DC) |
| ECP | Northwest Florida Beaches International Airport (Panama City, FL) |
| ECP | Energy Conservation Plan |
| ECP | Euro Contrôle Projet (French: Euro Control Project; est. 1988) |
| ECP | Extended Capabilities Port (type of parallel port) |
| ECP | Encryption Control Protocol |
| ECP | Europ' Computer Performance (France) |
| ECP | Eligible Contract Participant (Dodd-Frank) |
| ECP | Escadrilles Canadiennes de Plaisance (French) |
| ECP | Electronically Controlled Pneumatic (railway braking system) |
| ECP | E-Commerce Platform |
| ECP | eosinophil cationic protein |
| ECP | Exchange Control Panel (Microsoft) |
| ECP | Election Commission of Pakistan |
| ECP | Eye Care Professional |
| ECP | Emergency Conservation Program |
| ECP | European Congress of Psychology |
| ECP | Engineering Change Procedure |
| ECP | External Compliance Program |
| ECP | External Clock Prescaler |
| ECP | Enhanced Communications Port |
| ECP | Electronic Compliance Packaging |
| ECP | Extended Capabilities Port |
| ECP | Enhanced Client Proxy |
| ECP | Excessive Cross Posting |
| ECP | Error Correcting Protocol |
| ECP | Enhanced Compatible Port |
| ECP | Elliptic Curve Group |
| ECP | Entry Control Point |
| ECP | Engine Control Panel |
| ECP | East Coast Parkway (Singapore) |
| ECP | Emergency Contraceptive Pill |
| ECP | Empty Category Principle (linguistics) |
| ECP | External Counterpulsation |
| ECP | Early College Program (various schools) |
| ECP | European Commercial Paper |
| ECP | Electronic Check Presentment |
| ECP | East Coast Park (Singapore) |
| ECP | Estradiol Cypionate |
| ECP | Erosion Control Products |
| ECP | Extended Care Program (various organizations) |
| ECP | Extracorporeal Photophoresis (dermatology) |
| ECP | Early Childhood Project (various locations) |
| ECP | Environmental Compliance Program (regulation) |
| ECP | Entegris Cleaning Process (France) |
| ECP | Early Career Professional |
| ECP | Enterprise Cache Protocol (InterSystems) |
| ECP | Emergency Care Practitioner |
| ECP | Engineering Computer Program |
| ECP | Employee Concerns Program (human resources) |
| ECP | Eye Care Practitioner |
| ECP | Enlisted Commissioning Program |
| ECP | Environmental Conservation Program (various organizations) |
| ECP | Effective Core Potential |
| ECP | E. Capital Partners (Italy) |
| ECP | Embedded C Programming (computing) |
| ECP | École de Croisière de Paris (French: Paris Cruise School; Paris, France) |
| ECP | Electrochemical Plating |
| ECP | Early Commissioning Program (ROTC) |
| ECP | Electronic Commerce Project (International Chamber of Commerce) |
| ECP | Electron Capture |
| ECP | Engineering Change Program |
| ECP | Les Enfants et Les Chemins de fer en Provence (French: Children and Railways in Provence; elementary school contest) |
| ECP | Eye Care Provider |
| ECP | Executives of Construction Party (political party; Iran) |
| ECP | Economic Competitiveness Package (World Customs Organization) |
| ECP | Enduring Connection Policy (Commission for Regulation of Utilities; Ireland) |
| ECP | European Cancer Prevention Organization |
| ECP | Enhanced Call Processing |
| ECP | Enterprise Change Process (various companies) |
| ECP | European Common Proposal |
| ECP | Environmental Condition of Property |
| ECP | Essex Community Players (Vermont) |
| ECP | Electrochemical Corrosion Potential |
| ECP | Essential Community Provider |
| ECP | External Casing Packer (oil and gas industry) |
| ECP | Experimental and Clinical Psychopharmacology |
| ECP | Extended Cutting Plane |
| ECP | Early Commencement Program (education) |
| ECP | Export Control Program |
| ECP | Electron Channeling Pattern (electron diffraction method in the scanning electron microscope) |
| ECP | Emballage Condition Plastique (French packaging company) |
| ECP | Executive Cellular Processor |
| ECP | Édition Conception Publication (French publishing company) |
| ECP | Essence Communications Partners (publishing company) |
| ECP | Endoscopic Cyclo Photocoagulation (glaucoma treatment) |
| ECP | Empresa Colombiana de Petróleos (Ecopetrol) |
| ECP | Evangelism and Church Planting |
| ECP | Echo Chamber Project (documentary) |
| ECP | Elliptic Curve Group Over GF(P) |
| ECP | Europe Communication Promotion (France) |
| ECP | Ectrodactyly-Cleft Palate Syndrome |
| ECP | Engineering Change Package |
| ECP | Earth Contact Products (Olathe, KS) |
| ECP | Estimated Critical Position |
| ECP | Error Correction Protocol |
| ECP | Episcopal Church At Princeton (Princeton, NJ) |
| ECP | Electricity Capacity Planning (DOE, NEMS) |
| ECP | Elderly Cancer Patients |
| ECP | Entrepreneurial Competitive Profile |
| ECP | Employee Contribution Project (DOL) |
| ECP | Emission Control Program (Philippines) |
| ECP | Enhanced Communication Protocol |
| ECP | Emergency Call Processing |
| ECP | Equivalent Circuit Parameter |
| ECP | Emergency Contraception/Contraceptive Pill |
| ECP | Executive Control Program |
| ECP | Exposed Conductive Part |
| ECP | Escherichia Coli Common Pilus |
| ECP | Effective Communities Project (consultation to communities and their funders) |
| ECP | Eosinophil Chemotactic Protein |
| ECP | Electronic Check Presentation |
| ECP | Exercise Control Plan |
| ECP | Extended Care Physicians (Asheville, NC) |
| ECP | Engineers' Club of Philadelphia (Pennsylvania) |
| ECP | Exchange Coupled Pair |
| ECP | Events Center Paddock (National Western Stock Show, Denver, CO) |
| ECP | Emergency Command Precedence/Procedure |
| ECP | Equipment Change Proposal |
| ECP | Excessive Cross-Post(ing) (newsgroups) |
| ECP | Equipment Collection Point |
| ECP | Environmental Control Processor |
| ECP | East Capitol Pensionne (Cebu, Philippines) |
| ECP | Emergency Change Proposal |
| ECP | Emergency Cleanup Powder |
| ECP | Electric Cooling Pump |
| ECP | Exception Report Collection Process (Sprint) |
| ECP | Empowerment Contracting Program |
| ECP | Environment Compliance Plan |
| ECP | Extended Care Paramedic (NSW, Australia) |
| ECP | Electronic Product Codec |
| ECP | Expected Coverage Plan |
| ECP | Environmental Control Panel (Nortel) |
| ECP | Equivalent Component Pair |
| ECP | Excepted Coverage Plan |
| ECP | Energy Conservation Product (China) |
| ECP | Entreprises à Capitaux Privés (French: Business to Private Capital) |
| ECP | Electronic Change Permit |
| ECP | Electronic Combat Pilot (US Air Force) |
| ECP | Eject Chamber Pressure |
| ECP | External Compliance Plan |
| ECP | Embedded Controller Program (software) |
| ECP | Event-Correlated Potentials |
| ECP | European Chiefs of Police |
| ECP | EVGA (Extended Video Graphics Adapter/Array) Control Panel (EVGA Corporation) |