| PER | For Every 
| Others |
| PER | IEEE Power Engineering Review
| Others |
| PER | Lads On Tour
| Others |
| PER | Packed Encoding Rules
| Others |
| PER | Packet Encoding Rules
| Others |
| PER | Packet Error Rate
| Others |
| PER | Partial Equivalence Relation
| Others |
| PER | Patientens Egen Registrering
| Others |
| per | per - by or through
| Others |
| PER | Performance Evaluation Reports
| Others |
| PER | Perigee
| Others |
| PER | Periodic Electoral Review
| Others |
| PER | Persian
| Others |
| PER | Personnel
| Others |
| PER | Perth Airport
| Others |
| PER | Perth, Western Australia, Australia
| Others |
| PER | Pharmaceutical Evaluation Report
| Others |
| PER | Physics Education Research
| Others |
| PER | Plan de Empleo Rural
| Others |
| PER | Planning, Evaluating, and Reporting
| Others |
| PER | Player Efficiency Rating
| Others |
| PER | Porsche Engineering Romania
| Others |
| PER | Port Everglades Railway
| Others |
| PER | Portfolio Efficiency Ratio
| Others |
| PER | Position Error Recovery
| Others |
| PER | Post Error
| Others |
| PER | Post Execution Reporting
| Others |
| PER | Power Equipment Rack
| Others |
| PER | Practical Experience Requirement
| Others |
| PER | Predictive Error
| Others |
| PER | Preliminary Engineering Report
| Others |
| PER | Premature Engine Removal
| Others |
| PER | Prescricoes Especificas de Ralis
| Others |
| PER | Pretty Erroneous Ringtone
| Others |
| PER | Price Earning Ratio
| Others |
| PER | Price Earnings Ratio
| Others |
| PER | Price-to-Earnings Ratio
| Others |
| PER | Prisoner Escort Record
| Others |
| PER | Private Equity Recruitment
| Others |
| PER | Probable Error
| Others |
| PER | Process Energy Requirement
| Others |
| PER | Processing Equipment Repair
| Others |
| PER | Program Editor Resident Area
| Others |
| PER | Program Editor resident area (WordPerfect Library)
| Others |
| PER | Program Event Recording
| Others |
| PER | Progressive Endurance Run
| Others |
| PER | Protein Efficiency Ratio
| Others |
| PER | Public Emergency Regulations
| Others |
| PER | Pulley End Right
| Others |
| PER | Pyrotechnic Energy Release
| Others |