VA or V.A. may refer to:
- Validation Authority, in Public key infrastructure
- Value added, economic term meaning additional value of the product created on a given stage of production, marketing or other involved process
- Variable annuity
- Various Artists, a term used in the recording industry when multiple artists are featured in a work
- United States Department of Veterans Affairs, formerly the Veterans Administration, a department of the United States government
- Vetenskap & Allmänhet, Swedish scientific organisation
- Ventral anterior nucleus, a component of the thalamus in the central nervous system
- Veterans Health Administration, better abbreviated as "VHA", a sub-department of the United States Department of Veteran Affairs
- Victoria & Albert Museum, more usually given as "V&A"
- Virginia, United States postal abbreviation
- Va., older United States postal abbreviation for Virginia
- Visual acuity, a quantitative measure of visual perception
- Visual arts
- Virtual Adepts, a "tradition" in the White Wolf, Inc. role-playing game Mage: The Ascension
- Virtual airline
- Virtual assistant an independent contractor providing administrative, technical, or sometimes creative assistance to clients via the internet
- Virgin Atlantic, a worldwide airline owned by Richard Branson of the Virgin group
- Virtual Analog, musical instruments that emulate sound of analog synthesisers using DSP techniques
- Violent Apathy, punk rock band from Kalamazoo, MI
- Voice actor, an actor who provides voices for animated characters or non-visual media
- Vozvraschaemyi Apparat or VA spacecraft, a Soviet reentry vehicle
- V Australia Airlines, IATA airline designator
- Volt-ampere, the SI unit of apparent power measurement, dimensionally equivalent to the watt
- Vulnerability assessment, is the process of identifying and quantifying vulnerabilities in a system
- Vascular anomaly (disambiguation)
- Vermont Academy, a boarding and day high school in Saxtons River, VT
- Vertical asymptote
- Valproic acid, an often-used anticonvulsant and mood-stabilizing drug
VA or Va may also mean:
- Vampire Academy, series of 6 best-selling books
- Va (film), a 2010 film
- Va people, an ethnic group in China and Myanmar
- VA Software (also known as "VA Research" and "VA Linux Systems"), a computer builder, software publisher, and online media company that eventually became Geeknet
- An amateur radio callsign prefix for Canada, e.g. as in "VA1BOB"
- Postnominal letters of the Royal Order of Victoria and Albert
- Air speed in aviation associated with design maneuvering speed (Official abbreviation in FAR and CS requirements)
- VA Tech Wabag, a company with headquarters in Austria and India
- Vatican City, ISO 3166-1 country code
- .va, the country code top level domain (ccTLD) for Vatican