| Acronym | Definition |
|---|
| PAS | Power Assisted Steering |
| PAS | Pasadena (Amtrak station code; Pasadena, CA) |
| PAS | Pediatric Academic Societies |
| PAS | Parental Alienation Syndrome |
| PAS | Publicly Available Specification |
| PAS | Physician Assisted Suicide |
| PAS | Pascagoula (Amtrak station code; Pascagoula, MS) |
| PAS | Parti Islam Se-Malaysia (Islamic Party of Malaysia) |
| PAS | Periodic Acid-Schiff (medical technology: stain used to detect carbohydrates in tissue) |
| PAS | Professional Advisory Services (various companies) |
| PAS | Percussive Arts Society |
| PAS | Photoacoustic Spectroscopy |
| PAS | Planning Advisory Service (UK) |
| PAS | Personal de Administración y Servicios (Spanish) |
| PAS | Progressive Activity Sedan (Bavarian Motor Works) |
| PAS | Park Avenue Securities (various locations) |
| PAS | Point and Shoot (camera) |
| PAS | Partial Attribute Set (Microsoft) |
| PAS | Public Affairs Section |
| PAS | Personal Alarm System (ultrasonic emergency notification) |
| PAS | Para-Amino-Salicylic Acid |
| PAS | Post-Approval Study (various organizations) |
| PAS | Planning and Scheduling |
| PAS | Perris Auto Speedway (Perris, CA) |
| PAS | Performance Auto & Sound (magazine) |
| PAS | Protein A Sepharose (microbiology) |
| PAS | Pro Audio Spectrum (sound card) |
| PAS | Promoting Academic Success (program) |
| PAS | Public Address System |
| PAS | Paired Associative Stimulation (paradigm) |
| PAS | Professional Audio System |
| PAS | Professional Accounting Solutions (Rockville, MD) |
| PAS | Polish Academy of Sciences |
| PAS | Parenting after Separation (various organizations) |
| PAS | Patient Administration System (hospitals) |
| PAS | Post-Abortion Syndrome |
| PAS | People Are Stupid |
| PAS | Public Art Studies |
| PAS | Phone Activity Status |
| PAS | Performance Algorithm Shifting |
| PAS | Pascal |
| PAS | Protected Areas |
| PAS | Process Analysis Server |
| PAS | Power Active Steering |
| PAS | Public Announcement Service |
| PAS | Parking Assist System |
| PAS | Pro Audio Spectrum |
| PAS | Pdf Automation Server |
| PAS | Progressive Activity Sedan |
| PAS | Process Automation System |
| PAS | Personal Access System |
| PAS | Persistent Application System |
| PAS | Psychology, Anthropology and Sociology (University of Waterloo; Canada) |
| PAS | Pascal Source Code (File Name Extension) |
| PAS | Portfolio Advisory Service (Fidelity) |
| PAS | Performing Arts School |
| PAS | Programs, Activities and Services (various organizations) |
| PAS | Patient Access Solutions (Hauppauge, NY) |
| PAS | Professional Animal Scientist |
| PAS | Paris Airshow |
| PAS | Preliminary Alcohol Screening |
| PAS | Public Accountability Statement (corporate responsibility) |
| PAS | Paradise Arcade Shop (game parts dealer) |
| PAS | Portable Antiquities Scheme (UK) |
| PAS | Prosperity Automated System (marketing system) |
| PAS | Pershing Advisor Solutions (various locations) |
| PAS | Priorities Action Statement (Australia) |
| PAS | Personal Assistant Services (disabled and mature community) |
| PAS | Partido Alianza Social (Spanish: Social Alliance Party, Mexico) |
| PAS | Process Automation Systems |
| PAS | Professional Activity Study |
| PAS | Polyarylsulfone |
| PAS | Protected Areas Strategy (forestry industry) |
| PAS | Peripheral Anterior Synechiae |
| PAS | Passive Alcohol Sensor |
| PAS | Positron Annihilation Spectroscopy |
| PAS | Privacy Act Statement |
| PAS | Provoked A Smile |
| PAS | Performance Assessment System |
| PAS | Project Assessment Survey |
| PAS | Public Access System |
| PAS | Program Advisory Services |
| PAS | Philanthropic Advisory Service (now part of Wise Giving Alliance) |
| PAS | Programa de Acción Social (Spanish: Social Action Program) |
| PAS | Pakistan Academy of Sciences |
| PAS | Profile Alignment System |
| PAS | Performance Accountability System |
| PAS | Performance Algorithm Shifting (Cadillac automotive transmission technology) |
| PAS | Planning Assistance to States |
| PAS | Personal Amplification System |
| PAS | Professor of Aerospace Studies |
| PAS | Phytosanitary Alert System (pest information) |
| PAS | Physics Academic Software |
| PAS | Pennsylvania Abolitionist Society (est. 1775) |
| PAS | Power Available Spindle |
| PAS | Portland Audubon Society |
| PAS | Pre-Award Survey |
| PAS | Pollution Abatement System |
| PAS | Population Analysis Spreadsheets |
| PAS | Proteggere Avvertire Soccorrere (Italian: Protect Alert Rescue) |
| PAS | Photoacoustic Spectrometer/Spectroscopy |
| PAS | Phoenix Astronomical Society |
| PAS | Proud Arabian Stallion (Breyer mold) |
| PAS | Power Azimuth Spectrum |
| PAS | Plott Advanced Systems (Huntsville, AL) |
| PAS | PayMatters Accountancy Services (UK) |
| PAS | Paros, Greece - Paros Community (Airport Code) |
| PAS | Personality Assessment Screener (behavioral health) |
| PAS | Personnel Accounting Symbol |
| PAS | Photonics Association Singapore |
| PAS | Pierce-Arrow Society |
| PAS | Paranormal Awareness Society |
| PAS | Privilege Attribute Server |
| PAS | Personnel Accounting System (USMC) |
| PAS | Personnel Access System |
| PAS | Partitioned Annotations of Software (web-based sharing environment) |
| PAS | Production Application Support |
| PAS | Pilot Alert System |
| PAS | Primary Alerting System |
| PAS | Personnel Automation Section |
| PAS | Personal Alert System |
| PAS | Protected Aircraft Shelter |
| PAS | Pseudo Aircraft Simulation |
| PAS | Physicians for Automotive Safety |
| PAS | Personal Accounting System |
| PAS | Presidential Airlift Squadron |
| PAS | Product Assessment Service |
| PAS | Power Amplifier Symposium (IEEE) |
| PAS | Pharmacy Analytical Services |
| PAS | Product Attribute System (NRF) |
| PAS | Passive and Active Gas-Liquid Separator Devices |
| PAS | Page Author Stupid (web design) |
| PAS | Personal Access Services (Bellcore) |
| PAS | Pilotage Application System |
| PAS | Product of Ambulatory Surgery |
| PAS | Publicly Approved Submitter |
| PAS | National Postsecondary Agricultural Students Organization (Indianapolis, IN) |
| PAS | Push Application Server (BackWeb Technologies) |
| PAS | Partia Agrare e Shqipërisë (Agrarian Party of Albania) |
| PAS | Primary Accounting System (US Department of Education) |
| PAS | Philippine Academy of Sakya |
| PAS | Precision Acquisition System |
| PAS | Phased Announcement System (4ESS) |
| PAS | Presidential Arts Scholarship |
| PAS | Policyholder and Agency Systems (insurance) |
| PAS | Panic Attack Syndrome |
| PAS | Pricing Advisor System (insurance) |
| PAS | Project Acquisition Strategy |
| PAS | Presidential Appointee in a Position Requiring Senate Confirmation (federal government ethics) |
| PAS | Premises Appear Secure |
| PAS | Pod Aft Section |
| PAS | Position Announcement System (Sprint) |
| PAS | Provider Access Switch |
| PAS | Pipeline Alignment Sheet |
| PAS | Physical Attractiveness Stereotyping (psychology) |
| PAS | Presence and Availability Server |
| PAS | Passive Ambiguity Surface |
| PAS | Propuesta de Acuerdos de Seguridad (Spanish: Proposed Resolutions Security) |
| PAS | Par Asset Swap |