dBA

• Doctor of Business Administration, a research-based doctorate degree

• Diamond–Blackfan anemia, a congenital medical condition
• Dilute, Brown and non-Agouti, a strain of laboratory mice developed by C. C. Little

• DarkBASIC (.dba format), a computer language and associated programming environment designed to simplify the creation of 3-D video games
• Database administration, a technical function concerned with the effective use and control of a particular database and of its related applications
• Database administrator, a person responsible for the environmental aspects of a database
• Dynamic bandwidth allocation, a telecommunications algorithm

• Bolkhovitinov DB-A, a 1930s Soviet heavy bomber
• dB(A), a sound level unit in which different frequencies are weighted differently to account for the perception of the human ear
• Design basis accident, scenario in nuclear facilities
• Dibenzylideneacetone, an organic compound used as a sunscreen
• Double Bass Array, active absorption approach for low frequency sound reproduction
• Double bend achromat lattice, a magnetic lattice more commonly known as Chasman–Green lattice

• De Bellis Antiquitatis, a tabletop wargame
• Dalbandin Airport IATA code
• Dallas Bar Association, a 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, a legal term related to the name a business uses
• The Barge Association, formerly "Dutch Barge Association" (DBA): a club for leisure users of European inland waterways.

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