DA
- Air Georgia
- Boti
- D.A. Wallach
- DA (chemotherapy)
- DA postcode area
- DA! (band)
- DA-Notice
- Da (Javanese)
- Da (film)
- Da (play)
- Da (political party)
- Da County
- Da Da Da (disambiguation)
- Da Hoss
- Da River
- Da!
- Dah (disambiguation)
- Dah, Ivory Coast
- Dalton (unit)
- Dame of St Andrew
- Damon Amendolara
- Daniel Amos
- Danish language
- Dearness allowance
- Debtors Anonymous
- Deca-
- Democratic Alliance (South Africa)
- Democratic Awakening
- Deoxyanthocyanidin
- Department of Agriculture (Philippines)
- Desk accessory
- Destination America
- Deutsche Alternative
- DeviantArt
- Direct action (military)
- Disadvantage
- Distribution amplifier
- District attorney
- Doctor of Arts
- Domain authority
- Domoic acid
- Donegal Artillery
- Doomsday argument
- Dopamine
- Double-action
- Duck's ass
- Dumbledore's Army
- Dynamic game difficulty balancing
- Jon Moxley
- Justice and Truth Alliance
- Mrs.
- NZR DA class
- Ready 'n' Steady
- Royal College of Anaesthetists
- SJ Da
- The D.A. (disambiguation)
- U.S. Soccer Development Academy
- United States Department of the Army