| Acronym | Definition |
|---|
| PCB | Printed Circuit Board |
| PCB | Polychlorinated Biphenyls (CAS Number 27323-18-8) |
| PCB | Pakistan Cricket Board |
| PCB | Panama City Beach (Florida) |
| PCB | Partido Comunista Brasileiro (Brazilian Communist Party) |
| PCB | Process Control Block |
| PCB | Pollution Control Board |
| PCB | Programme Coordinating Board |
| PCB | Perfect Cherry Blossom (game) |
| PCB | Physics, Chemistry and Biology |
| PCB | Professional Capacity Building |
| PCB | Power Circuit Breaker |
| PCB | Pennsylvania Certification Board |
| PCB | Please Call Back |
| PCB | President's Council on Bioethics |
| PCB | Pakistan Computer Bureau |
| PCB | Professional Certification Board |
| PCB | Program Control Block |
| PCB | Proposed Committee Bill |
| PCB | Planning Capacity Building |
| PCB | Program Control Board |
| PCB | Parts Control Board |
| PCB | Post Coital Bleeding |
| PCB | Plenum Chamber Burning |
| PCB | Pensions Compensation Board (UK) |
| PCB | Power Control Bit |
| PCB | Project Control Board |
| PCB | Power Cut Back |
| PCB | Packet Control Block |
| PCB | Pico Coulomb (aka PicoCoulomB; electrical charge) |
| PCB | Program Change Board |
| PCB | Polar Covalent Bond |
| PCB | Payload Control Board |
| PCB | Plymouth Concert Band (Plymouth, MN) |
| PCB | Process Correspondence Batch |
| PCB | Poker Club Brignais (French poker club; Brignais, France) |
| PCB | Pomona Concert Band (Pomona, CA) |
| PCB | Pentachlorobenzole |
| PCB | Person Call Back (telephony/communications) |
| PCB | Planning Change Board |
| PCB | Projected Class Baseline |
| PCB | Power Control Beacon |
| PCB | Peninsula Concert Band |
| PCB | Pre-Cast Billeting |
| PCB | Perinton Concert Band (Rochester, NY) |
| PCB | Professional Certificate in Bioinformatics |
| PCB | Plano Community Band (Plano, TX) |
| PCB | Pensacola Civic Band (Pensacola, FL) |
| PCB | Politically Correct Buzzword |
| PCB | Plymouth Community Band (Plymouth, MI) |
| PCB | Palatine Concert Band (Palatine, Illinois) |
| PCB | Pomerado Community Band (San Diego, CA) |
| PCB | Potomac Concert Band |
| PCB | ProCredit Bank (various locations) |
| PCB | Pest Control Business |
| PCB | Pert Citizens' Band (Perth, ON, Canada) |
| PCB | Phoenix Community Concert Band (Phoenix, NY) |