| Acronym | Definition |
|---|
| PEC➣Posta Elettronica Certificata (Italian: Certified Electronic Mail) |
| PEC➣Professional Education Center |
| PEC➣Pakistan Engineering Council |
| PEC➣Prince Edward County |
| PEC➣Proposta de Emenda à Constituição (politics, Brazil) |
| PEC➣Peritoneal Exudate Cells (immunology) |
| PEC➣Perivascular Epithelioid Cell |
| PEC➣Packet Error Checking (computing) |
| PEC➣Piedmont Environmental Council (Virginia) |
| PEC➣Punjab Engineering College (Chandigarh, India) |
| PEC➣Planning and Environment Committee (various locations) |
| PEC➣Packet Exchange Cycle |
| PEC➣Partner E-Learning Connection |
| PEC➣Peripheral Event Controller |
| PEC➣Primary Enterprise Controller |
| PEC➣Primary Education Completion |
| PEC➣Predicted Environmental Concentration |
| PEC➣Pacific Economic Community |
| PEC➣Packet Error Code |
| PEC➣PharmacoEconomic Center (US DoD) |
| PEC➣Photoelectric Cell |
| PEC➣Priority Existing Chemical |
| PEC➣Pacific Energy Center |
| PEC➣Primary Eye Care (various organizations) |
| PEC➣Periodic Error Correction |
| PEC➣Physical Education Coaching (various organizations) |
| PEC➣Private Equity Conference (various organizations) |
| PEC➣Professional Executive Committee (various organizations) |
| PEC➣Personal Effects Coverage (Insurance) |
| PEC➣Parent Education Conference (various organizations) |
| PEC➣Placements Épargne Canada (Canada investment savings) |
| PEC➣Professional Ethics Committee (various organizations) |
| PEC➣Perth Entertainment Centre (Australia) |
| PEC➣Pan-European Crossing |
| PEC➣Perfect Electric Conductor |
| PEC➣Persistent Elite Creation (gaming) |
| PEC➣Pulsed Eddy Current (inspection tool) |
| PEC➣President's Export Council |
| PEC➣Physical Education Center (Emory University) |
| PEC➣Patient Education Concepts (Houston, TX) |
| PEC➣Professional Education Conference |
| PEC➣Plain English Campaign |
| PEC➣Potomac Edison Company (Virginia) |
| PEC➣Primary Environmental Care |
| PEC➣Primary Epithelial Cell (cultures) |
| PEC➣Plaintiffs' Executive Committee (litigation) |
| PEC➣Postgraduate Education Committee (various schools) |
| PEC➣Peoples Energy Corporation (Illinois) |
| PEC➣Palmer Events Center (Austin, TX) |
| PEC➣Private Equity Council (Washington, DC) |
| PEC➣Primary Energy Consumption |
| PEC➣Politique Energetique Commune (French: Common Energy Policy) |
| PEC➣Progress Energy Carolinas, Inc. |
| PEC➣Polio Eradication Campaign (various organizations) |
| PEC➣Protestant Episcopal Church |
| PEC➣Photoelectrochemistry |
| PEC➣Polyelectrolyte Complex |
| PEC➣Pondicherry Engineering College (Pondicherry, India) |
| PEC➣Predecisional Enforcement Conference |
| PEC➣Program Element Code |
| PEC➣Petroleum Energy Center (Japan) |
| PEC➣Peace Education Commission |
| PEC➣Physician's Emergency Certificate |
| PEC➣Political Equality Club (various locations) |
| PEC➣Provincial Electoral Commission (various locations) |
| PEC➣Proximity–Effect Correction |
| PEC➣Polymer Engineering Center |
| PEC➣Petrohawk Energy Corporation (various locations) |
| PEC➣Pancreatic Epithelial Cell |
| PEC➣Polymer Engineering Co., Ltd. (Canada) |
| PEC➣Parent Engagement Center (Fresno, CA) |
| PEC➣Proposal Evaluation Committee |
| PEC➣Political Economy Club (various schools) |
| PEC➣Probable Effect Concentration (toxicology) |
| PEC➣Peavey Electronics Corporation (various locations) |
| PEC➣Professional Engineers in Construction (division of NSPE) |
| PEC➣Power Efficiency Corporation (various locations) |
| PEC➣Product Engineering Center |
| PEC➣Presidential Exploratory Committee (politics) |
| PEC➣Personalized Electronic Catalogue |
| PEC➣Pay Equity Committee (various schools; Canada) |
| PEC➣Pearson Education Canada |
| PEC➣Professional Engineering Consultants, Inc. |
| PEC➣Palestinian Energy and Environment Research Center |
| PEC➣Pre-Embarkation Check (shipping) |
| PEC➣Professional Electrical Contractor |
| PEC➣Personal Equipment Connector |
| PEC➣Provider Engagement Coordinator |
| PEC➣Pet Education Center |
| PEC➣Product Engineering Code |
| PEC➣Priesthood Executive Committee |
| PEC➣Protective Electrostatic Chuck Cover (semiconductors) |
| PEC➣Potential Energy Curve |
| PEC➣Parallel Earth Conductor |
| PEC➣Philippine Electrical Code |
| PEC➣Pure Entertainment Company |
| PEC➣Project Entropia Cent (gaming, MMORPG) |
| PEC➣Public Education Coalition |
| PEC➣Preferred Equity Certificate |
| PEC➣Professional Eligibility Certificate |
| PEC➣Philippine Episcopal Church |
| PEC➣Passive Experiment Carrier (MEEP, NASA) |
| PEC➣Program Execution Client |
| PEC➣Program Evaluation Center |
| PEC➣Programas de Concurrencia |
| PEC➣Passive Equipment Cabinet |
| PEC➣Physical Endurance Course (various organizations) |
| PEC➣Public Education Council (Australia) |
| PEC➣Plant Equipment Code |
| PEC➣Profiling E. coli Chromosome |
| PEC➣Production Equipment Code |
| PEC➣Propeller Electronic Controller (aviation) |
| PEC➣Professional Engineering Corporation (Fairfax, Virginia) |
| PEC➣Program/Erase Controller (computer memory) |
| PEC➣Photo Electronics Corp |
| PEC➣Pulchowk Engineering College (Kathmandu, Nepal) |
| PEC➣Power Electronics Council |
| PEC➣Product Equipment Code (Nortel) |
| PEC➣Part Evaluation Cycle |
| PEC➣Protective Electronic Circuit (electronics) |
| PEC➣Prion Expert Committee (Japan) |
| PEC➣Primary Equipment Custodian |
| PEC➣Previously Enjoyed Companion |
| PEC➣Pre-Employment Check (background investigation) |
| PEC➣Pentagon Episcopal Community |
| PEC➣Physics Emotion Cognition (software agent traits) |
| PEC➣Printed Electrical Circuit |
| PEC➣PEOC3S Executive Committee |
| PEC➣Pulse Envelope Correlation |
| PEC➣Parmelee Enterprises Corporation |
| PEC➣Promotion and Education Committee |
| PEC➣Platform Evaluation Confidence |
| PEC➣Progressive Educational Complex (Karachi, Pakistan) |
| PEC➣Passive Equipment Console |
| PEC➣Point, Evidence, Comment (writing format) |
| PEC➣Primitive Episcopal Church |
| PEC➣Passive Equipment Center |
| PEC➣Personal Exposure Concentration (chemicals) |
| PEC➣Parramatta Education Centre (Australia) |