EV, eV, or e. V. may refer to:
- Electronvolt or eV, a unit of energy
- Eingetragener Verein or e.V., a registered voluntary association in Germany
- Electric vehicle, a vehicle using an electric motor instead of an internal combustion engine
- Electro-Voice, a United States manufacturer of speakers, amplifiers, microphones and other audio equipment
- Embedded value, the present value of future profits for a life insurance company
- Enterprise value, an economic measure reflecting the market value of a whole business
- Equivalent variation, a measure of how much more money a consumer would pay before a price increase to avert the price increase
- Evolution Data Optimized, a telecommunications standard for the wireless transmission of data through radio signals
- Expected value, the mean of a random variable's probability distribution.
- Exposure value, a combination of shutter speed and aperture in photography
- Extended Validation Certificate, a type of X.509 Certificate used in securing computer communications
- Land of Ev, a fairy country in Ozma of Oz
- Common Era or Era vulgaris
- Atlantic Southeast Airlines's IATA airline designator
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