| Acronym | Definition |
|---|
| PbO | Lead Oxide |
| PbO | Parliamentary Budget Officer (Canada) |
| PbO | Placebo |
| PbO | Publiekrechtelijke Bedrijfsorganisatie |
| PbO | Piperonyl Butoxide |
| PbO | Projected Benefit Obligation (pension plan accounting) |
| PbO | President Barack Obama |
| PbO | Practical Boat Owner |
| PbO | Playback Orchestre |
| PbO | Profiler Binary Output |
| PbO | Profiler Batch Output |
| PbO | Plate Boundary Observatory |
| PbO | Property Book Officer |
| PbO | Process Before Output |
| PbO | Philharmonia Baroque Orchestra (San Francisco, CA) |
| PbO | Performance Based Organization |
| PbO | Prevention of Bribery Ordinance (Hong Kong) |
| PbO | Pin Bone Out (seafood purchasing specification) |
| PbO | Polybenzoxazole |
| PbO | Portland Baroque Orchestra (Oregon) |
| PbO | Pixel Buffer Object |
| PbO | Public Benefit Organization |
| PbO | Personal Banking Officer |
| PbO | Packed By Owner (shipping label) |
| PbO | Prevent Blindness Ohio |
| PbO | Power Back Off |
| PbO | Pittsboro, NC |
| PbO | Plan and Budget Organization (Iran) |
| PbO | Paraburdoo, Western Australia, Australia - Paraburdoo (Airport Code) |
| PbO | Priority Banking Officer |
| PbO | Pre-Birth Order (legal adoption order) |
| PbO | Post Burn Out |
| PbO | Plan, Build and Operate |
| PbO | Private Banking Online |
| PbO | Pocket Box Office (mobile games by Airborne Entertainment, Inc.) |
| PbO | Program & Budget Office |
| PbO | Pension Buyout Obligation |
| PbO | Poly-Paraphenylene-2 6-Benzobisoxazole (Zylon) |
| PbO | Polarized Born-Oppenheimer |
| PbO | Presiding Bishop's Office (LDS church) |
| PbO | Penicillin in Beeswax |
| PbO | Profit Before Overhead |
| PbO | Performance Based Objective |
| PbO | Polymorphic Buffer Overflow (security attack) |
| PbO | Provided by Owner (construction industry) |
| PbO | Prescribed Brand Only |
| PbO | Prohibited Behaviour Order (judicial sentencing; Australia) |