| Acronym | Definition |
|---|
| PLAN | People's Liberation Army Navy (China) |
| PLAN | Position, Location and Navigation (research group) |
| PLAN | People's Liberation Army of Namibia |
| PLAN | Public Lands Action Network |
| PLAN | Private Lan |
| PLAN | Personal Localized Alerting Network (US FEMA) |
| PLAN | Planned Lifetime Assistance Network |
| PLAN | Plain Language Action Network |
| PLAN | Progressive Legislative Action Network (advocacy) |
| PLAN | Positive Life Association of Nigeria |
| PLAN | Programming LAnguage Nineteen hundred (assembly type language) |
| PLAN | Platform Latijnsamerika in Nederland (Dutch: Platform for Latin America in the Netherlands) |
| PLAN | Parts Logistics Analysis Network |
| PLAN | Pantex Local Area Network |
| PLAN | Piecewise Linear Approximation Network |
| PLAN | Payload Local Area Network |