| Acronym | Definition |
|---|
| EPSS | École Pratique de Service Social (French: School of Social Work Practice) |
| EPSS | Electronic Proposal Submission System (EC) |
| EPSS | Electronic Performance Support System |
| EPSS | Emergency Power Supply System |
| EPSS | Excise Payment Security System (UK) |
| EPSS | Empresa Promotora de Servicios de Salud (Spanish: Health Services Provider) |
| EPSS | E-Point Septal Separation |
| EPSS | Environment Protection & Safety Section (Dubai, AE) |
| EPSS | Expert Performance Support System |
| EPSS | Electrical Power Sub-System |
| EPSS | Enhanced Packet Switching Service |
| EPSS | Early Psychosis Support Service (Edinburgh, Scotland) |