PEP may refer to:

• Packetized Ensemble Protocol, used by Telebit modems
• Pairwise error probability, in digital communications
• Peak envelope power of a transmitter
• pretty Easy privacy (pEp), encryption project
• Python Enhancement Proposal, for the Python programming language
• Packet Exchange Protocol in Xerox Network Systems
• Performance-enhancing proxy, mechanisms to improve end-to-end TCP performance
• Policy Enforcement Point, in XACML

• Political and Economic Planning, a British think tank formed in 1931
• Priority Enforcement Program, in US immigration enforcement
• Promoting Enduring Peace, a UN organization
• Pacific Equity Partners, a private equity investment firm
• Propellants, Explosives, Pyrotechnics, a journal
• Provincial Emergency Program (British Columbia), the former name of Ministry of Emergency Management and Climate Readiness

• Polyestradiol phosphate, an estrogen used to treat prostate cancer
• Polymorphic eruption of pregnancy or pruritic urticarial papules and plaques of pregnancy
• Post-exposure prophylaxis, preventive medical treatment
• post-ERCP pancreatitis, a complication after endoscopic retrograde cholangiopancreatography
• Phosphoenolpyruvic acid, a biochemical compound
• Pep reaction, proton–electron–proton reaction

• New York Stock Exchange symbol for PepsiCo
• Personal equity plan, a former UK account type
• Politically exposed person, a financial classification

• Passaporte Electrónico Português, Portuguese electronic passport
• PEP, a studio album by musician Lights
• Philippine Entertainment Portal, a website operated by GMA New Media
• Positron-Electron Projects at Stanford Linear Accelerator Center
• Post – eCommerce – Parcel, Divisions of Deutsche Post
• Primary Entry Point, a station of the US Emergency Alert System
• Primate Equilibrium Platform, used in animal experimentation
• Progressive except Palestine, a pro-Palestinian political phrase
• Prototype Electro-Pneumatic family of trains, British Rail Classes 445 and 446
• Pulsed energy projectile, a non-lethal weapon

• Pep (disambiguation)

This disambiguation page lists articles associated with the title PEP.
If an internal link led you here, you may wish to change the link to point directly to the intended article.