PCS

PCS may refer to:

Medicine

Picture communication symbols, drawings used to communicate with autistic people and in other alternative communication systems
Post-concussion syndrome, a set of symptoms that a person may experience for weeks, months, or even years after a concussion
Post-COVID syndrome, symptoms that develop and continue for a long time after COVID-19
Postcholecystectomy syndrome, the presence of abdominal symptoms after surgery to remove the gallbladder
Precordial catch syndrome, a common cause of chest pain complaints in children and adolescents

Permanent change of station, to be permanently moved to a new post in the U.S. armed forces
Personal Clothing System, designation of British Army No.8 Combat Dress
Patrol Craft Sweeper, a class of World War II U.S Navy vessels, including
- USS PCS-1376
- USS PCS-1379

Pacific Collegiate School, a grades 7–12 charter school in Santa Cruz, California
Petaluma City Schools, the school district of Petaluma, California
Partito Comunista Sammarinese (Sammarinese Communist Party), a former political party in San Marino
PhillyCarShare, a defunct non-profit organization in Philadelphia, acquired by Enterprise in 2011
Polish Council of State, supreme political body of Poland from 1947 to 1989
Portland Center Stage, a theater company based in Portland, Oregon since 1988
Potash Corporation of Saskatchewan, a Canadian corporation that is the world's largest producer of potash
Presbyterian Christian School, a private school in Hattiesburg, Mississippi
Professional Children's School, a not-for-profit, college preparatory school for working or aspiring child actors and dancers, based in New York City
Public and Commercial Services Union, a trade union representing UK public sector workers
Pueblo City Schools, the school district of Pueblo, Colorado

Parsecs, units of measurement used in astronomy
Partitioning Communication System, a high-assurance communications security technology
Periphere Computer Systeme, a German manufacturer of UNIX-based computers in the 1980s and 1990s
Personal Communications Service, a set of wireless communications capabilities that allows some combination of terminal mobility, personal mobility, and service profile management, e.g. Sprint PCS mobile phone service
Photon correlation spectroscopy, a spectroscopic technique in chemistry and physics used to determine particle sizes in suspensions.
Physical Coding Sublayer, an Ethernet Layer 1 (PHY) sub-layer
Plastic-clad silica fiber, a type of optical fiber
Process Control System
Profile connection space, an intermediary form for color-data used when performing conversions between color spaces

Pacific Central Station, a railway station in Vancouver, British Columbia
Pacific Championship Series, a professional esports league for the MOBA PC game League of Legends
Photo City Sagamihara, awards for photography given annually by the Japanese town of Sagamihara
Pinball Construction Set, a computer game by Bill Budge published by Electronic Arts
Program Component Score, part of the ISU Judging System for figure skating competitions