| PLO | Pacific Launch Operation 
| Others |
| PLO | Palestine Liberation Organisation
| Others |
| PLO | Palestine Liberation Organization
| Others |
| PLO | Palestinian Liberation Organisation
| Others |
| PLO | Palestinian Liberation Organization
| Others |
| PLO | Palestinians Loving Others
| Others |
| PLO | Palistine Liberation Organization
| Others |
| PLO | Panini Linguistic Olympiad
| Others |
| PLO | Panini Linguistics Olympiad
| Others |
| PLO | Parliamentary Liaison Officer
| Others |
| PLO | Partido Liberal Ortodoxo
| Others |
| PLO | Patrick Loch Otieno
| Others |
| PLO | Peace Love Out
| Others |
| PLO | Peace Loving Optimists
| Others |
| PLO | Peoples Liberation Organization
| Others |
| PLO | Permanent Latrine Orderly
| Others |
| PLO | Phase Locked Oscillator
| Others |
| PLO | Planned Order
| Others |
| PLO | Plant Liberation Organization
| Others |
| PLO | Please Leave On
| Others |
| PLO | Please Leave, OK?
| Others |
| PLO | Please Lick Opening
| Others |
| PLO | Pleuronic Lecithen Oranogel
| Others |
| PLO | Pluronic Lecithin Organogel
| Others |
| PLO | Plus Libyan Orders
| Others |
| PLO | Poor Left Out
| Others |
| PLO | Port Lincoln, South Australia, Australia
| Others |
| PLO | Pot Limit Omaha
| Others |
| PLO | Prescribed Learning Outcome
| Others |
| PLO | Prescribed Learning Outcomes
| Others |
| PLO | Pretty Long Opinions
| Others |
| PLO | Prison Law Office
| Others |
| PLO | Proceedings and Legal Outline
| Others |
| PLO | Procurement and Logistics Office
| Others |
| PLO | Program Learning Outcome
| Others |
| PLO | Program Learning Outcomes
| Others |
| PLO | Public Land Order
| Others |
| PLO | Public Law Outline
| Others |
| PLO | Public Limit Order
| Others |
| PLO | Push Leon Overboard
| Others |
| PLO | The Palestine Liberty Order
| Others |