| Abbreviation | Definition |
|---|---|
| PERT | Postsecondary Education Rehabilitation Transition |
| PES | Pouya Educational Services |
| PESA | Positive Education Schools Association |
| PESCA | Proclamation Education Service Communion and Adoration |
| PESI | Professional and Education Services International |
| PESI | Professional Educational Services International |
| PESO | Pension and Education Savings Opportunity |
| PESO | Physical Education Student Organization |
| PESPA | Pelham Education Support Personnel Association |
| PESPA | Pennsbury Educational Support Professionals Association |
| PESPA | Physical Education Sport and Physical Activity |
| PESPA | Puyallup education support professionals Association |
| PESRP | Punjab Education Sector Reform Programme |
| PESRP | Punjab Education Sector Reforms Program |
| PESS | Patient Education Support Services |
| PESS | Physical Education And School Sport |
| PESS | Physical Education and Sports Science |
| PESS | Postsecondary Education Services and Support |
| PESS | Project Education South Sudan |
| PEST | Peer Education Skills Training |