| Acronym | Definition |
|---|
| ESSR | European Society for Surgical Research |
| ESSR | European Society of Musculoskeletal Radiology |
| ESSR | Établissement de Soins de Suite et de Réadaptation (French: Follow-Up Establishment of Care and Rehabilitation) |
| ESSR | Estonian Soviet Socialist Republic |
| ESSR | Excess Salmon to Spawning Requirement (fisheries; Canada) |
| ESSR | English Springer Spaniel Rescue (various organizations) |
| ESSR | Exercise Science, Sport and Recreation (various locations) |
| ESSR | Enrollment Services and Student Records (Ryerson University; Canada) |
| ESSR | Entente Saint Sauveur Rondehaye (French sports club) |
| ESSR | Expanded Ship’s Selected Records |