| EMS | Electromagnetic Susceptibility | - | Computer Acronyms(common) |
| EMS | Electron Momentum Spectroscopy | - | Computer Acronyms(common) |
| EMS | Environmental Management System | - | Computer Acronyms(common) |
| EMS | Ethyl Methanesulfonate | - | Computer Acronyms(common) |
| EMS | Expanded Memory Specification | - | Human Genome |
| EMS | Environmental Mutagen Society | - | Medical |
| EMS | Earn Money Sleeping (joke At Expense Of Emergency Medical Service) | - | NASA |
| EMS | Electromagnetic Susceptibility | - | Organizations |
| EMS | Engineering Master Schedule | - | Organizations |
| EMS | Entry Monitor Subsystem | - | Organizations |
| EMS | Entry Monitoring System | - | Organizations |
| EMS | Environmental Management System | - | Satellite Meterology |
| EMS | Emergency Medical Services | - | Astronomy |
