EM3
# EM3

The term EM3 may refer to :

* Exploration Mission-3 (EM-3), former name of Artemis 3, a planned mission for NASA's Artemis program
* Echo Meter EM3, a handheld active bat detector manufactured by US company Wildlife Acoustics
* e-M3, a test electric vehicle developed by Croatian company Rimac Automobili
* EM-3, a proposed experimental British assault rifle, a precursor of the EM-2 rifle
* EM3, or Electrician's Mate 3rd Class, an enlisted rate in the US Navy and US Coast Guard
* EM3, a category for streaming pupils formerly used in education in Singapore
