DSA
- Ajman
- DSA (radio telescope)
- DSA Myanmar
- Dante Society of America
- Das Schwarze Auge
- Data structure
- Data structure alignment
- DeKalb School of the Arts
- Debian
- Defence Safety Authority
- Democratic Socialists of America
- Dental surgery
- Denver School of the Arts
- Detroit School of Arts
- Deutsche Schule Algarve
- Development Studies Association
- Digital Security Act, 2018
- Digital Services Act
- Digital Signature Algorithm
- Digital subtraction angiography
- Direct School Admission
- Direct Selling Association
- Directory System Agent
- Disabled Students' Allowance
- Distinguished Service Award (OA)
- Doncaster Sheffield Airport
- Donor-specific antibody
- Down's Syndrome Association
- Driving Standards Agency
- Dubai
- Duluth, South Shore and Atlantic Railway
- Durham School of the Arts
- Dynamic storage allocation
- German School of Athens
- Mixed metal oxide electrode
- Owens Valley Radio Observatory
- Per diem
- Pixel Visual Core
- Sharjah