DSA may refer to:
Education
- DeKalb School of the Arts, a grades 8–12 public school in DeKalb County, Georgia, US
- Denver School of the Arts, a grades 6–12 public school in Denver, Colorado, US
- Detroit School of Arts, Michigan, US
- Deutsche Schule Algarve, German school in Silves, Portugal
- Deutsche Schule Athen or German School of Athens, Greece
- Direct School Admission, Singapore
- Disabled students allowance, a UK government grant for students in higher education
- Durham School of the Arts, a grades 6–12 public school in Durham, North Carolina, US
Information technology
- Digital Signature Algorithm, a cryptographic standard for digital signatures
- Directory System Agent, an IT standard, part of X.500
- Domain-Specific Architecture, see Pixel Visual Core
- Debian Security Advisory, security advisories for the Debian Linux operating system
- Data structure alignment
- Data structures and algorithms
- Dynamic storage allocation, runtime reservation of address space from the free store
Organizations
- Dante Society of America, an academic society in the US promoting the study of Dante Alighieri
- Defence Safety Authority, UK
- Democratic Socialists of America, a political action organization in the US
- Development Studies Association, UK and Ireland
- Direct Selling Association, the name of several trade associations
- Down's Syndrome Association, a UK charity
- Driving Standards Agency, UK
- DSA Myanmar, Defense Services Academy
- The Dozenal Society of America, advocacy group for the use of a base-12 numeral system
Other
- Daily Subsistence Allowance, a per diem contribution for UNDP staff members
- Das Schwarze Auge role-playing game
- Dental surgery assistant
- Digital Security Act, 2018 (Bangladesh)
- Digital Services Act, EU regulation concerning illegal/improper online content
- Digital subtraction angiography, a fluoroscopy technique
- Mixed metal oxide electrode , Dimensionally Stable Anodes in electrolysis
- Distinguished Service Award (OA), Order of the Arrow, Boy Scouts of America
- Doncaster Sheffield Airport, England (IATA airport code)
- Donor-specific antibody in transplant medicine
- Dubai–Sharjah–Ajman, a conurbation of emirates in the UAE
- Duluth, South Shore and Atlantic Railway, a former railway company
- Dsa, a rare variant of the humid continental climate with hot, dry summers and cold, wet/snowy winters
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