PISR
| Acronym | Definition |
|---|---|
| PISR | Pakistan International School, Riyadh (Saudi Arabia) |
| PISR | PCM (Pulse-Code Modulation) In Status Register |
| PISR | Piano Integrato Sociale Regionale (Italian: Integrated Regional Social Plan; Tuscany, Italy) |
| PISR | Placed in Service Report |
| PISR | Pre-Inspection Statistical Report (UK) |
| PISR | Persistent Intelligence, Surveillance & Reconnaissance |