EMSA

EMSA may stand for:

• Electron Microscopy Society of America former name of the Microscopy Society of America
• Electrophoretic mobility shift assay
• Emergency Medical Services Alliance, in Marion County, Florida, United States
• Emergency Medical Services Authority, In Oklahoma City and Tulsa, OK
• Emsa (Household goods) manufacturer from Germany
• European Magnetic Sensors and Actuators
• European Maritime Safety Agency
• European Masters Sports Association, the organization responsible for bidding and placing athletic competitions
• European Medical Students' Association, in Brussels, Belgium
• European Multiple System Atrophy study group