| Acronym | Definition |
|---|
| PIB | Produit Intérieur Brut (French: Gross Domestic Product) |
| PIB | Producto Interno Bruto (Mexico) |
| PIB | Produto Interno Bruto (Portugal) |
| PIB | Producto Interior Bruto (Spain) |
| PIB | Press Information Bureau (Government of India) |
| PIB | Processor in A Box (AMD) |
| PIB | Policy Information Base |
| PIB | Publishers' Information Bureau |
| PIB | PolyIsoButylene |
| PIB | Pittsburgh Compound B (biomarker for amyloid in Alzheimer's disease) |
| PIB | Put-In Bay (island) |
| PiB | Pebibyte (2^50 bytes) |
| PIB | Pädagogisches Institut des Bundes (Vienna, Austria) |
| PIB | Polyisobutylen |
| PIB | Public Investment Board (India) |
| Pib | Pebibit (2^50 bits) |
| PiB | Princeton in Beijing |
| PIB | Laurel, MS, USA - Laurel Hattiesburg/Camp Shelby (Airport Code) |
| PIB | Perhimpunan Indonesia Baru (political party) |
| PIB | Peachtree Industrial Boulevard (Georgia) |
| PIB | Papuan Infantry Battalion (World War II) |
| PIB | Polytechnic Institute of Brooklyn (later Polytechnic Institute of New York) |
| PIB | Pontificio Instituto Biblico |
| PIB | Preflight Information Bulletin (aviation) |
| PIB | Potential Induced Breathing |
| PIB | Pyrotechnic Installation Building |
| PIB | Pre-International Baccalaureate |
| PIB | Polyhedral Inclusion Body |
| PIB | Person in Black (a person of the Gothic subculture in western society) |
| PIB | Pork Information Bureau |
| PIB | Personal Information Base |
| PIB | Performance Improvement Board |
| PIB | Pain in Butt |
| PIB | Practice Improvement Branch |
| PIB | Product Improvement Bulletin |
| PIB | Product Implementation Branch (NOAA) |
| PIB | Polar Ionosphere Beacon |
| PIB | Program Information Briefing |
| PIB | Parts Illustrated Breakdown (military parts ordering manuals showing all components) |
| PIB | Parachute Infantry Battalion/Brigade |
| PIB | Personnel Information Briefing |
| PIB | Press Information Bulletin |
| PIB | Propellant Inspection Building |
| PIB | Prize Information Bureau (sweepstakes scam) |
| PIB | Pulse Interference Blanker |
| PIB | Process Interface Building |
| PIB | Proceeded Immediately By |
| PIB | Pimps in Black (parody) |
| PIB | Pacific Inland Tariff Bureau (Portland, Oregon) |
| PIB | Pre-Installation Baseline |
| PIB | Photo Intelligence Brief |
| PIB | Program Improvement Board |
| PIB | Project Integration Board |
| PIB | Pride of Indy Band (Indianapolis, IN) |
| PIB | Post Industrial Bikers |
| PIB | Preliminary Instruction Book |
| PIB | Phase-Isolated Bus (electrical engineering) |
| PIB | physical-layer information base |