ERS
- ER (disambiguation)
- ERS (insurance company)
- ERS Railways
- ERS10
- Economic Research Service
- Egyptian Ratscrew
- Electoral Reform Society
- Electoral Reform Society
- Electric road
- Electronic Reporting System
- Elektroprivreda Republike Srpske
- Elevator Repair Service
- Ellipsoidal reflector spotlight
- Employees Retirement System of Texas
- Ernakulam Junction railway station
- Eros Airport
- Erse (disambiguation)
- Ersuic languages
- European Remote-Sensing Satellite
- European Respiratory Society
- Exposed riverine sediments
- Hers-Mort
- NHS e-Referral Service