eV may stand for:

• electronvolt
• eingetragener Verein , i.e. a club registered in Germany.

EV may be an acronym for:

• electric vehicle: a using an electric motor instead of an internal combustion engine
• expected value: in the mathematics field of probability
• exposure value: in photography, a combination of shutter speed and aperture
• escape velocity: in physics, the speed required to escape gravity
• Escape Velocity: a computer game and role-playing game
• Eaton Vance stock symbol
• Electro-Voice , a company which makes microphones and other audio equipment [1] http://www.electrovoice.com
• electoral vote
• the IATA code for Atlantic Southeast Airlines

Ev is also a fairy country near the land of Oz, see Ozma of Oz.