TEV may refer to:

• Transient Earth voltage: a term for voltages appearing on the metal work of switchgear due to internal partial discharges
• TeV, or teraelectronvolt or trillion electron volt, a measure of energy
• Total enterprise value, a financial measure
• Total economic value, an economic measure
• Tracked Electric Vehicles, an open source electric vehicle system proposed by the TEV Project
• Transparent Election Verification Software, open source software for auditing elections
• Tobacco etch virus, a plant pathogenic virus of the family Potyviridae
  • Tobacco etch virus protease, an enzyme commonly used in biochemistry
• Today's English Version, a former name for the Good News Bible
• TEV, a ship prefix for Turbo-electric Vessel, usually with steam driven turbines.
• Thermal expansion valve, a refrigeration system component
• The IATA code designator for Teruel Airport

• All pages with titles beginning with TEV
• All pages with titles containing TEV