| Acronym | Definition |
|---|
| PLR | Private Label Rights |
| PLR | Private Letter Ruling (IRS) |
| PLR | Passive Leg Raising (medical test) |
| PLR | Past Life Regression |
| PLR | Prime Lending Rate |
| PLR | Participação Nos Lucros e Resultados (Portuguese: Participation in Profit Sharing) |
| PLR | Peripheral Location Register |
| PLR | Public Lending Right |
| PLR | Physician Labeling Rule (US FDA) |
| PLR | Primary Lock Reinforcement (various companies) |
| PLR | Party like a Rockstar |
| PLR | Packet Loss Rate |
| PLR | Preliminary Loss Report (US Army) |
| PLR | Partitio Liberal-Radicale Svizzero (Radical Free Democratic Party Switzerland) |
| PLR | Pig Launcher & Receiver (oceaneering) |
| PLR | Provider of Last Resort (electric utility) |
| PLR | Pronóstico de Largo-Rango (Spanish: Long-Range Forecast) |
| PLR | Pipeline and Riser (offshore drilling) |
| PLR | Public Liberty Radio |
| PLR | Pulse Link Repeater |
| PLR | Pass Liaison Representative |
| PLR | Place Louis Riel (hotel; Winnipeg, Canada) |
| PLR | Pupillary Light Response |
| PLR | Proportional Loss Rate |
| PLR | Polská Lidová Republika (People's Republic of Poland) |
| PLR | Patá en La Raja |
| PLR | Public Letter of Reprimand (Medical Board of California) |
| PLR | Packet Loss Resilience |
| PLR | Portable Launch Rig (X Development, LLC) |
| PLR | Package-Level Reliability |
| PLR | Programmable Logic Relay |
| PLR | Permissible Loss Ratio (risk management) |
| PLR | Prequential Likelihood Ratio |
| PLR | Philippine Liberation Ribbon |