DBA may refer to:
In academic contexts:
- Doctor of Business Administration, a research-based doctorate degree
In business:
- Dallas Bar Association, professional organization for lawyers in Dallas, Texas, U.S.
- DBA (airline), a former low-cost German airline
- Defense Base Act, type of insurance that covers employees at U.S. defense bases overseas
- Doing business as, legal term related to the name a business uses
In music:
- Dead by April, a pop metal band from Sweden
- Death By Audio, a Venue, Effect Pedal Company and Record Label in Brooklyn, NY
In science:
- Diamond-Blackfan anemia, a congenital medical condition
- Dibenzylideneacetone, an organic compound used as a sunscreen
- Dilute, Brown and non-Agouti, a strain of laboratory mice developed by C. C. Little
- Dolichos biflorus agglutinin, a cell surface lectin
In technology:
- dBA, decibel A-weighting, an environmental noise measurement
- DarkBASIC, a computer language and associated programming environment designed to simplify the creation of 3-D video games. Saves in .dba format.
- Database administrator, a person responsible for the environmental aspects of a database
- Database administration, a technical function concerned with the effective use and control of a particular database and of its related applications
- Design basis accident, scenario in nuclear facilities
- Dynamic bandwidth allocation, telecommunications algorithm
In other uses:
- Bolkhovitinov DB-A, 1930s Soviet heavy bomber
- De Bellis Antiquitatis, tabletop wargame