| Acronym | Definition |
|---|
| PSB | Partido Socialista Brasileiro (Brazilian Socialist Party) |
| PSB | Protective Services Board (various locations) |
| PSB | Pet Shop Boys (band) |
| PSB | Public Service Broadcasting (radio and television) |
| PSB | Public Service Board (Vermont) |
| PSB | Public Security Bureau (China) |
| PSB | Punjab Sind Bank (India) |
| PSB | Public Safety Building |
| PSB | Public Sector Bank (India) |
| PSB | Protected Specimen Brush (pneumonia diagnosis technique) |
| PSB | Power Supply Board (electronics) |
| PSB | Productivity and Standards Board (Singapore) |
| PSB | Pakistan Sports Board |
| PSB | Photosynthetic Bacteria |
| PSB | Pacific Symposium on Biocomputing |
| PSB | Presidential Service Badge (US DoD) |
| PSB | Purple Sprouting Broccoli |
| PSB | Processor Support Bus |
| PSB | Pci Single Board |
| PSB | Protection Services for Business |
| PSB | Program Specification Block |
| PSB | Processor System Bus |
| PSB | Pams Status Block |
| PSB | Processor Side Bus |
| PSB | Pre-Crash Seat Belt |
| PSB | Path State Block |
| PSB | Please See Below |
| PSB | Penn State Erie, the Behrend College |
| PSB | Private Security Bureau (Texas Department of Public Safety) |
| PSB | Programma Starters op Buitenlandse Markten (Dutch) |
| PSB | Plant Science Bulletin (Botanical Society of America) |
| PSB | Professional Standards Bureau (various locations) |
| PSB | Please Stand By |
| PSB | Peoples Savings Bank (various locations) |
| PSB | Pot-Size Bet (poker) |
| PSB | Physical Sciences Building (various schools) |
| PSB | Program Specification Block (IBM) |
| PSB | Penn, Schoen and Berland (Washington, DC market research firm) |
| PSB | Park State Bank (Minnesota) |
| PSB | Patrol Services Bureau (various locations) |
| PSB | Program Support Branch |
| PSB | Promotion Selection Board (US DoD) |
| PSB | Perkins School for the Blind (Watertown, MA) |
| PSB | Personnel Support Battalion |
| PSB | Product Safety Board (various organizations) |
| PSB | Processor Side Bus (Intel) |
| PSB | Public Sector Budgeting |
| PSB | Personnel Service Battalion |
| PSB | Packet Switched Backplane |
| PSB | Postal Square Building (Washington, DC) |
| PSB | Public Services Broker |
| PSB | Plastic Surgery Blog |
| PSB | Providence School Board (Providence, RI) |
| PSB | Pre-School Booster (child immunization; UK) |
| PSB | Product Security Baseline (various organizations) |
| PSB | Planning Support Branch (US FEMA) |
| PSB | Panhandle State Bank (Sandpoint, ID) |
| PSB | Pump Shaft Break |
| PSB | Public Service Body (Canada) |
| PSB | Plants, Soils and Biometeorology (Utah State University) |
| PSB | Poststrike Base (US DoD) |
| PSB | Padilla Spear Beardsley (consulting; Minneapolis, MN) |
| PSB | Persistent Slip Band |
| PSB | Panasonic Storage Battery Co., Ltd. (Japan) |
| PSB | Potential Suicide Bomber |
| PSB | Professional and Statutory Body |
| PSB | Portsmouth School of Ballet (Portsmouth, NH) |
| PSB | Public Square Books (New York) |
| PSB | Plastic Scintillator Barrel |
| PSB | Perth Street Bikes (Perth, Australia based motorcycle forum) |
| PSB | Predictor-Directed Stream Buffer |
| PSB | Peninsula Symphonic Band (Palo Alto, CA) |
| PSB | Placentia Symphonic Band (Anaheim, CA) |
| PSB | Performance Standards Book |
| PSB | Professional Staffs Branch (United Kingdom) |
| PSB | Preliminary Stud Book (American Trakehner Association; horse breeding) |
| PSB | Product Structure Breakdown |
| PSB | Punk Social Board (GameFAQs) |
| PSB | Preferred Supplier Benefit |
| PSB | Program Station Basis |
| PSB | Pokemon Social Board (GameFAQs.com forum) |
| PSB | Program Summary Briefing |