| Acronym | Definition |
|---|
| ERSA➣European Regional Science Association |
| ERSA➣Engineering of Reconfigurable Systems and Algorithms (conference) |
| ERSA➣Employer Retirement Savings Account |
| ERSA➣En Route Supplement Australia (aviation) |
| ERSA➣External Resource Sharing Agreement |
| ERSA➣Ernst Sachs |
| ERSA➣Economic Research Southern Africa (National Treasury of South Africa) |
| ERSA➣Equity Release Solicitors Alliance |
| ERSA➣Electronic Research Supply Agency (US Navy) |
| ERSA➣Employee Retirement Savings Account |
| ERSA➣Emergency Roadside Assistance |
| ERSA➣Extended Runway Safety Area |
| ERSA➣Eric Sadek (founder of ERSA Group) |
| ERSA➣Enhanced Regional Situational Awareness |
| ERSA➣Equal Resource-Sharing Allocation |
| ERSA➣Estudios de la Realidad Social Argentina (high-school subject in Argentina) |