| Acronym | Definition |
|---|
| PLIA | Pollution Liability Insurance Agency (Olympia, WA) |
| PLIA | Pulse Line Ion Accelerator |
| PLIA | Platte Lake Improvement Association (Michigan) |
| PLIA | Planetary Laboratory for Image Analysis (software; Planetary Sciences Group; University of the Basque Country; Spain) |
| PLIA | Public Lands Interpretive Association |
| PLIA | Philippine Life Insurance Association (Makati, Philippines) |
| PLIA | Putting Love Into Action (Dordt College) |
| PLIA | Pawtuckaway Lake Improvement Association (Nottingham, NH) |
| PLIA | Palestinian Library and Information Association |
| PLIA | P. (Philippe) Lhuillier Insurance Agency (now Cebuana Lhuillier Insurance Solutions; Philippines) |