| P&B | Proportioning and by-Pass Valve 
| Others |
| P/B | Playback
| Others |
| P/B | Pre-Burner
| Others |
| P/B | Price-To-Book Ratio
| Others |
| P/B | Push Button
| Others |
| PB | der PatschBeauftragter
| Others |
| PB | Fax (FAXability Plus)
| Others |
| PB | Lead
| Element |
| PB | Pacific Beach
| Others |
| PB | Pacific Boozin
| Others |
| PB | Packard Bell
| Others |
| PB | Padington Bear
| Others |
| PB | Page Break
| Others |
| PB | Page Briefing
| Others |
| PB | Pale Blue
| Others |
| PB | Palm Beach
| Others |
| PB | Palm Beach, California
| Others |
| PB | Panic Button
| Others |
| PB | Papa Bull
| Others |
| PB | Paper Based
| Others |
| PB | paper-back [book]
| Others |
| pb | paperback
| Others |
| PB | Parabolic Barrier
| Others |
| PB | Paraiba, Brazil
| Others |
| PB | Parking Brake
| Others |
| PB | Parliamentary Broadcast
| Others |
| PB | Partial body
| Others |
| PB | Participatory Budgeting
| Others |
| PB | Particle Beam
| Others |
| PB | Pass Back
| Others |
| PB | Passed Ball
| Others |
| PB | Patriot's Baby
| Others |
| PB | Patriots Baby
| Others |
| PB | Patrol Boat
| Others |
| PB | Patrol Bomber
| Others |
| PB | Paul Bailey
| Others |
| PB | Paul's Boutique
| Others |
| PB | Peace Building
| Others |
| PB | Peanut Butter
| Others |
| PB | Penetrating B
| Others |
| PB | Perceived Benefits
| Others |
| PB | Perceived Bitterness
| Others |
| PB | Peregoy and Boyle
| Others |
| PB | Performance Barn
| Others |
| PB | Performance Benchmark
| Others |
| PB | Performance Button
| Others |
| PB | Personal Banking
| Others |
| PB | Personal Best
| Others |
| PB | Personal Box
| Others |
| PB | Perspective Broker
| Others |
| PB | Petabyte
| Others |
| PB | Peter Bartram
| Others |
| PB | Peter Boy
| Others |
| PB | Phebus Burst
| Others |
| PB | Phenobarbital
| Others |
| PB | Phillip Barrow
| Others |
| PB | Phillipsburgh
| Others |
| PB | Philly Boys
| Others |
| PB | Phonetically Balanced
| Others |
| PB | Phosphate buffer
| Others |
| PB | Photon Blast
| Others |
| PB | Physio Ball
| Others |
| PB | Picture Book
| Others |
| PB | Piggy Back
| Others |
| PB | Pineapple Bacon
| Others |
| PB | Pint bags
| Others |
| PB | Pipelined Burst
| Others |
| PB | Pismo Beach
| Others |
| PB | Pitney Bowes
| Others |
| PB | PixBase Setup file
| Others |
| PB | PlaBase
| Others |
| PB | Plackett Burman
| Others |
| PB | Planing Board
| Others |
| PB | Planning Board
| Others |
| PB | Planning Branch
| Others |
| PB | Planters Bank
| Others |
| PB | Plate Block
| Others |
| PB | Play Back
| Others |
| PB | Playboy
| Others |
| PB | Playboy Bunny
| Others |
| PB | Played By
| Others |
| PB | Players Book
| Others |
| PB | Plenty Bigoted
| Others |
| Pb | Plumbum (Lead)
| Others |
| PB | Pocket Basic
| Others |
| PB | Pocket Beagle
| Others |
| PB | Poisson Brackets
| Others |
| PB | Polar Ball
| Others |
| PB | Polar Bear
| Others |
| PB | Polished Brass
| Others |
| PB | Polymer Based
| Others |
| PB | Polymerase Basic
| Others |
| PB | Poo Bear
| Others |
| PB | Pooh Bear
| Others |
| PB | Poor Baby
| Others |
| PB | Poor Backup
| Others |
| PB | Portuguese Brazilian
| Others |
| PB | Porzellanfabrick Burggrub
| Others |
| PB | Possum Bub
| Others |
| PB | Post Baccalaureate
| Others |
| PB | Posted By
| Others |
| PB | Posting Board
| Others |
| PB | Power Ball
| Others |
| PB | Power Bank
| Others |
| PB | Power Book
| Others |
| PB | Power Booster
| Others |
| PB | Power Bore
| Others |
| PB | Power Bottom
| Others |
| PB | Powerful Blower
| Others |
| PB | Practical Business
| Others |
| PB | Prayer Beast
| Others |
| PB | Precious Baby
| Others |
| PB | President's Budget
| Others |
| PB | Pretty Baby
| Others |
| PB | Previous Balance
| Others |
| PB | Primary Basin
| Others |
| PB | Primary Beam
| Others |
| PB | Prime Broker
| Others |
| PB | Primed Blaster
| Others |
| PB | Princess Beatrix
| Others |
| PB | Princess Bill
| Others |
| PB | Princess Bubblegum
| Others |
| PB | Printed Board
| Others |
| PB | Priscilla Babe
| Others |
| PB | Private Bank
| Others |
| PB | Private Banking
| Others |
| PB | Pro Bono
| Others |
| PB | Proboard configuration files
| Others |
| PB | Productive Burb
| Others |
| PB | Productive Burp
| Others |
| PB | Project Bucharest
| Others |
| PB | Project Builder
| Others |
| PB | Projects BHCS
| Others |
| PB | Prominent Blogger
| Others |
| PB | Prominent Bum
| Others |
| PB | Property Bivalence
| Others |
| PB | Property Book
| Others |
| PB | Property of Being
| Others |
| PB | Prosodic Boundary
| Others |
| PB | Protection Bit
| Others |
| PB | Protracted Block
| Others |
| PB | Public Bathroom
| Others |
| PB | Public Beta
| Others |
| PB | Publications Board
| Others |
| PB | Puck Bunny
| Others |
| PB | Puckish Barrister
| Others |
| PB | Puggy Bunny
| Others |
| PB | Pull Box (fire alarm)
| Others |
| PB | Punjab, Punjab (India)
| State |
| PB | Punk Buster
| Others |
| PB | Pure Bred
| Others |
| PB | Purr Box
| Others |
| PB | Push Back
| Others |
| PB | Pushy Broad
| Others |
| PB | Pushy Broads
| Others |