| PRU | P2Y12 Reaction Units 
| Others |
| PRU | Paramedic Response Unit
| Others |
| PRU | Pararescue Unit
| Others |
| PRU | Partnership for Reform in Ukraine
| Others |
| PRU | Patient Referral Unit
| Others |
| PRU | Pay Research Unit
| Others |
| PRU | Performance Review Unit
| Others |
| PRU | Peripheral Resistance Unit
| Others |
| PRU | Peripheral Resistance Units
| Others |
| PRU | Personnel Reception Unit
| Others |
| PRU | Phenomenon Research Unit
| Others |
| PRU | Photo Recon Unit
| Others |
| PRU | Photographic Reconnaissance Unit
| Others |
| PRU | Physician Response Unit
| Others |
| PRU | Plant Raise and Understand
| Others |
| PRU | Plant Raise Understand
| Others |
| PRU | Police Resources Unit
| Others |
| PRU | Police Resources Unit (!) of the Home Office
| Others |
| PRU | Port Replacement Unit
| Others |
| PRU | Potomac Rugby Union
| Others |
| PRU | Power Representation Unity
| Others |
| PRU | Preferred Return Unit
| Others |
| PRU | Pressure Regulator Ultra
| Others |
| PRU | Primary Reporting Unit
| Others |
| PRU | Productivity Resources Unlimited
| Others |
| PRU | Professional Responsibility Unit
| Others |
| PRU | Programmable Realtime Unit
| Others |
| PRU | Programmable Runtime Unit
| Others |
| PRU | Prome, Burma ( Myanmar)
| Others |
| PRU | Propylene Recovery Unit
| Others |
| PRU | Pseudo-Random Upstream
| Others |
| PRU | Psychos R Us
| Others |
| PRU | Pupil Referral Unit
| Others |