| Acronym | Definition |
|---|
| EMSR➣Expected Marginal Seat Revenue |
| EMSR➣Eastbourne Miniature Steam Railway (UK) |
| EMSR➣Electrician's Mate, Ship Repair (US Navy) |
| EMSR➣Elektro-, Mess-, Steuer- und Regelungstechnik (German automation term) |
| EMSR➣Emergency Medical Services Reserve (Pasadena Fire Department; Pasadena, CA) |
| EMSR➣Environmental Monitoring Surveillance and Remediation (Northern New Mexico Citizens' Advisory Board) |