| PLLI | National Institute on Postsecondary Education, Libraries, and Lifelong Learning 
| Others |
| PLLI | Pending Logistics Loss Indicator
| Others |
| PLLI | Peter Lougheed Leadership Initiative
| Others |
| PLLI | Pollution Legal Liability Insurance
| Others |
| PLLI | Productivity Linked Lumpsum Incentive
| Others |
| PLLI | Professional Learning and Leadership Institute
| Others |
| PLLI | Professional Learning Leadership Institute
| Others |
| PLLI | Professional Linguistics Licensed Interpreter
| Others |
| PLLI | PTT Leadership and Learning Institute
| Others |