DAA

DAA or Daa may refer to:

People

 * Ludvig Kristensen Daa, Norwegian historian, ethnologist, auditor, editor of magazines and newspapers, educator and politician
 * Yinduu Daa, also known as Daai Chin, ethnic tribe of Myanmar
 * Claus Daa, a Danish nobleman and landowner

Technology

 * Data access arrangement, in telecommunications
 * Designated Approving Authority, in the US Department of Defense, an individual who provides oversight of an IT environment
 * Detect and Avoid, a set of technologies designed to avoid interference of UWB upon other networks
 * Direct Access Archive, a file format for disk images

Authentication

 * Data Authentication Algorithm, a former American standard for authentication codes
 * Digest access authentication, protocol for negotiating browser user credentials
 * Direct anonymous attestation, remote authentication of a trusted computer

Other

 * Daa, a ward in the Arusha Region of Tanzania
 * Danmarks Adels Aarbog, (Yearbook of the Danish Nobility), a genealogical publication
 * Davison Army Airfield, Virginia, United States, a military airport
 * Decare, a metric area unit equivalent to 1000 square metres
 * Delaware Aerospace Academy, a camp program run by the Delaware AeroSpace Education Foundation
 * Designers Against Aids, a non-profit organization which battles against AIDS, together with artists, designers and companies
 * Diacetone alcohol, a chemical used as an intermediate and solvent
 * Dictionary of Australian Artists
 * Dubai American Academy, an educational institute located in Dubai, United Arab Emirates
 * DAA (Irish company), an Irish company that operates Dublin Airport and Cork Airport
 * D-aspartic acid