| Acronym | Definition |
|---|
| PCS | Permanent Change of Station |
| PCS | Pieces |
| PCS | Personal Communications System |
| PCS | Public and Commercial Services (Union) |
| PCS | Public Charter School |
| PCS | Process Control Systems |
| PCS | Punch(ed) Card System |
| PCS | Personal Communication Services |
| PCS | Personal Care Services |
| PCS | Property Claim Services (Jersey City, New Jersey) |
| PCS | Personal Communication System |
| PCS | Procedure Coding System |
| PCS | Power Center (Unit) Substation |
| PCS | Processor Clock Speed |
| PCS | Post-Concussion Syndrome |
| PCS | Permit Compliance System |
| PCS | Pinellas County Schools (Florida) |
| PCS | Physical Coding Sublayer |
| PCS | Personal Computer Software |
| PCS | Patni Computer Systems |
| PCS | Professional Children's School (New York, NY) |
| PCS | Potash Corporation of Saskatchewan, Inc. |
| PCS | Parti Chrétien-Social (French: Christian Social Party, Luxembourg) |
| PCS | Photon Correlation Spectroscopy |
| PCS | Profile Connection Space |
| PCS | Pressure Control Solenoid |
| PCS | Print Contrast Signal |
| PCS | Port Congestion Surcharge |
| PCS | Portable Computer System |
| PCS | Production Control System |
| PCS | Possession of a Controlled Substance |
| PCS | Patient Care System |
| PCS | processing subsystem (US DoD) |
| PCS | Personal Communications Sector |
| PCS | Project Control System |
| PCS | Power Conditioning System |
| PCS | Planning and Control System |
| PCS | Professional Car Society |
| PCS | Private Client Service |
| PCS | Plant Control System |
| PCS | Power Conversion System |
| PCS | Petroleum Contaminated Soil |
| PCS | Pacific Coast Steel (San Diego, CA) |
| PCS | Pressure Control System |
| PCS | Property Control System |
| PCS | Philippine Computer Society |
| PCS | Plastic Clad Silica (fiber) |
| PCS | Pension Capital Strategies (UK) |
| PCS | Photonic Crystal Slab |
| PCS | Port Community System |
| PCS | Post Contract Support |
| PCS | Projected Coordinate System |
| PCS | Program Control System |
| PCS | Position, Course and Speed |
| PCS | Personal Conferencing Specification |
| PCS | Pointing Control System |
| PCS | Primary Coolant System |
| PCS | Physics of Colloids in Space |
| PCS | Propulsion Control System |
| PCS | Protective Coatings Specialist (Society for Protective Coatings certification) |
| PCS | Patchable Control Store |
| PCS | Provo Canyon School (Orem, UT) |
| PCS | Panama Canal Surcharge |
| PCS | Portable Computer Solutions |
| PCS | Program Counter Store |
| PCS | Paco Catholic School (Paco, Manila, Philippines) |
| PCS | Pittsylvania County Schools (Pittsylvania County, Virginia) |
| PCS | Planning Control Sheet |
| PCS | Porsche Club Sverige (automobile club; Sweden) |
| PCS | Posts, Camps, and Stations |
| PCS | Professional Computer Solutions Inc |
| PCS | Primary Control Ship |
| PCS | Payload Control System |
| PCS | Promotion of Chemical Safety (WHO) |
| PCS | Professional Communications Society (IEEE) |
| PCS | Pre Classic Space (Lego theme) |
| PCS | Portable Control Station |
| PCS | Portable Computer Software |
| PCS | Pointing Control Subsystem |
| PCS | Power Control Subchannel |
| PCS | Primary Cooling System |
| PCS | Physiological Control Systems |
| PCS | Programmable Character Set |
| PCS | Proximal Coronary Sinus |
| PCS | Post-Cholecystectomy Syndrome |
| PCS | Pull Cord Switch |
| PCS | Pretty Crappy Service :-) |
| PCS | Port Concentrator Switch (Cisco) |
| PCS | Pulaski's Chicken Soup (Star Trek) |
| PCS | Partnership Control System |
| PCS | People's Community Services |
| PCS | Pateros Catholic School (Pateros, Metro Manila, Philippines) |
| PCS | Partners for Clean Streams (Perrysburg, OH) |
| PCS | Pretreated Corn Stover |
| PCS | Pharmaceutical Card System (est. 1969) |
| PCS | Placed on the Calendar in the Senate (bill status) |
| PCS | Portmarnock Community School (Ireland) |
| PCS | Pilot Control System |
| PCS | Partial Complex Seizure |
| PCS | Pikeland Community School |
| PCS | Pest Control Section |
| PCS | Pitchers' Caught Stealing (baseball; times a pitcher initiates a caught stealing) |
| PCS | Product Cost System |
| PCS | Planar Circularly Symmetric |
| PCS | processor controlled strapping (US DoD) |
| PCS | Placement Coordination Services (Community Care Access Centers; Ontario, Canada) |
| PCS | Posterior Cruciate Sacrificing |
| PCS | Packet Check Sequence |
| PCS | Password Connection Security (Microcom) |
| PCS | Potato Chip Scraps |
| PCS | Propagation Conditions Summary |
| PCS | Passive Containment System |
| PCS | Plaza Computer System |
| PCS | Personal Communications Seminar |
| PCS | Process Control Sheet |
| PCS | Permanent Civilian Status |
| PCS | Predefined Command Script |
| PCS | Physical Convergence Sublayer |
| PCS | Photo Charting Squadron |
| PCS | Porsche Club of Sweden |
| PCS | Procured Component Software |
| PCS | Preauthorized Checking Service |
| PCS | Platteville Cab Service (Wisconsin) |
| PCS | Peel Choral Society (Brampton, Ontario, Canada) |
| PCS | Progressively-Censored Sample |
| PCS | Prussian Claims Society |
| PCS | Prospective Cohort Study (various organizations) |
| PCS | Public Communications Services, Inc. (Los Angeles, CA) |
| PCS | Primary Care Site (various locations) |
| PCS | Parkview Center School (Roseville, MN) |
| PCS | Photoionization Cross Section (physics) |
| PCS | Park Century School (est. 1968; Culver City, CA) |
| PCS | Philippine Civil Service |
| PCS | Personal Cooking System (Jetboil) |
| PCS | Print Control Software |
| PCS | Plainville Choral Society (Connecticut) |
| PCS | Precordial Catch Syndrome (chest pain) |
| PCS | Programme on Chemical Safety (World Health Organization) |
| PCS | Patient Care Services (various locations) |
| PCS | Pollution Control Strategy (Delaware) |
| PCS | Prevention Care and Support (various organizations) |
| PCS | Prostate Cancer Symposium |
| PCS | Printing and Copying Services (various schools) |
| PCS | Proc-Cyber-Services (billing entity) |
| PCS | Pima County Sheriff (Arizona) |
| PCS | Professional, Customer Service |
| PCS | Pinckney Community Schools (Pinckney, MI) |
| PCS | Portsmouth Christian School (Portsmouth, VA) |
| PCS | Pacific Crest Securities (Portland, OR) |
| PCS | Pastoral Care of the Sick |
| PCS | Professional Creative Services (various companies) |
| PCS | Prostate Cancer Screening |
| PCS | Process Control Solution (software) |
| PCS | Pew Center on the States (Pew Charitable Trusts) |
| PCS | Personal Counseling Service (various locations) |
| PCS | Psychological Counseling Service |
| PCS | Peace Constituency Size |