(and its variants cV, Cv, and cv) is a two-letter abbreviation that can stand for:
- Curriculum vitae (Latin for "course of life"), also known as a Résumé; a summary of academic and professional history and achievements
- Aircraft carrier, United States Navy's hull classification symbol
- Calculus of variations in mathematics
- Calorific value
- Cape Verde, ISO 3166, FIPS Pub 10-4 and obsolete NATO digram
- Cartellverband der katholischen deutschen Studentenverbindungen, a German umbrella organisation of catholic student fraternities
- Carro Veloce, Italian Made Tankettes model (eg. CV33)
- Castlevania, a popular video game series
- Castro Valley, California
- Cataclysmic variable star
- Circulatory system (CV for Cardiovascular), in medicine
- Cargolux, airline designator
- Cee Vee, Texas, also abbreviated CV
- Central Vermont Railway reporting mark
- Character Voice (an abbreviation in Japan for seiyū sometimes used by Western fans of anime.)
- Chettinad Vidyashram, a large private school
- Choking Victim
- Coefficient of variation, in mathematics and statistics
- ColecoVision, a video game console
- Comando Vermelho, a Brazilian criminal organization created in 1969
- Combat Vehicle 90
- Compensating variation, economic concept of compensation for a price change.
- Computer Vision
- Constant-velocity joint
- Controlled vocabulary
- Control Volume, term used in fluid mechanics for a boundary in which to consider an energy balance.
- Conversio Virium
- Copy and paste, in computing, ctrl+c, followed by ctrl+v are the keystrokes for copying and pasting.
- Courvoisier, cognac.
- Cove - CV is used as an abbreviation by the US Postal Service for "Cove"
- Cross of Valour, a Canadian and Australian decoration
- CV/Gate, a control voltage and gate solution commonly used in vintage pre-MIDI synthesizers for external control
- Cyclic Voltammetry, an electrochemical technique in chemistry
- Horsepower, a unit of power, from the French Cheval vapeur (CV or cv)
- 105 (number) in Roman numerals.