| Acronym | Definition |
|---|
| EPSM | Établissement Public de Santé Mentale (French: Public Institution for Mental Health) |
| EPSM | Equine Polysaccharide Storage Myopathy |
| EPSM | Engineering and Physical Sciences in Medicine |
| EPSM | European Association of Payment Service Providers for Merchants |
| EPSM | European Pine Shoot Moth |
| EPSM | Environmental Protection Society of Malaysia (Selangor, Malaysia) |
| EPSM | Enhanced Performance Surface Mount |
| EPSM | Echo Planar Shift Mapping |
| EPSM | Envelope Power Spectrum Model |
| EPSM | Early Primary Surrogate Mother (non-parent caregiver) |