PPS commonly refers to:

• Post-postscript, an afterthought, usually in a document.

PPS may also refer to:

• Puerto Princesa International Airport, Palawan, Philippines (by IATA code)
• Priority Passenger Service, in Singapore Airlines' frequent flyer programme

• Pay per sale, a payment method used in affiliate marketing
• Premium Packaged Spirits or Pre-Packaged Spirits, a term for alcopops
• Purchasing power standard, an artificial currency unit
• Public Procurement Service, a South Korean government agency

• Parliamentary Private Secretary, a UK and New Zealand government post
• Parliamentary Protective Service, a Canadian law enforcement agency
• Partnership for Prosperity and Security in the Caribbean, an agreement between nations in the Caribbean region
• Personal Public Service Number, an identifier used in the Republic of Ireland
• Planning Policy Statements, under the UK's Planning and Compulsory Purchase Act 2004
• Principal Private Secretary, a senior civil service post supporting a cabinet minister in the United Kingdom
• Prospective payment system, a health care payment model in the United States
• Public Prosecution Service (disambiguation), various bodies charged with bringing criminal prosecutions to court
• Public Procurement Service, South Korea
• Provincial Police Service (disambiguation), state civil service for police in India

• Paterson Public Schools, a school district in New Jersey, US
• Pawhuska Public Schools, a school district in Oklahoma, US
• Peoria Public Schools, a school district in Illinois, US
• Princeton Public Schools, another New Jersey school district
• Pittsburgh Public Schools, a school district in Pennsylvania, US
• Portland Public Schools (Oregon), another US school district
• Politics, Psychology and Sociology, an undergraduate degree course at the University of Cambridge

• Pact for Sicily (Italian: Patto per la Sicilia), Italy
• Party of Progress and Socialism, Morocco
• Pirate Party Switzerland
• Polish Socialist Party (Polish: Polska Partia Socjalistyczna)
• Popular Socialist Party (Brazil)
• Popular Socialist Party (Mexico)

• .pps, or PowerPoint Show, a file format used by the Microsoft PowerPoint presentation software
• Packets per second, a measure of throughput
• PPS.tv, Chinese peer-to-peer streaming video network software
• Programmable power supply
• Proofpoint Protection Server, a commercial product to detect and quarantine spam
• Pulse per second signal, in the Network Time Protocol

• Parkinson plus syndrome, a group of neurodegenerative diseases
• Pentosan polysulfate, a drug used to treat interstitial cystitis
• Popliteal pterygium syndrome, an inherited condition affecting the face, limbs, and genitalia
• Post-polio syndrome, a condition that affects some people who have previously survived an acute attack of poliomyelitis
• Puppy pregnancy syndrome, a delusional illness in humans

• Precise Positioning Service, a military Global Positioning System feature
• PPS submachine gun, a Soviet WWII-era submachine gun
• Walther PPS, a compact semi-automatic pistol

• Poly(p-phenylene sulfide), a thermoplastic polymer
  • PPS film capacitor, with a polyphenylene sulfide dielectric
• PPS Silent Surfactant, a cleavable detergent in biochemistry

• Popular Patristics Series, a book series by St. Vladimir's Seminary Press
• Project for Public Spaces, a US nonprofit organization
• Puyo Puyo Sun, a 1996 puzzle video game
• Princess Peach: Showtime!, an upcoming 2024 video game
• Premier Program Service (a.k.a. PPS), a proposed, but never launched, fifth television network that would have been operated by MCA Inc. & Paramount Communications

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• PP (disambiguation)
• PS (disambiguation)

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