- DNSA stands for Department of National Security Affairs
- DNSA stands for Digital National Security Archive
- DNSA stands for Departamento de Nutrição Social e Aplicada (Brazil)
- DNSA stands for 3,5-Dinitrosalicylic Acid
- DNSA stands for Dirección Nacional de Sanidad Animal (Argentina)
- DNSA stands for Dallas North Soccer Association
- DNSA stands for 5-Dimethylaminonaphthalene-1-Sulfonamide
- DNSA stands for Département Nutrition et Sciences Alimentaires
- DNSA stands for Deutsche Naturstein-Archiv
- DNSA stands for Dutch National Students Association
- DNSA stands for Doctoral Nursing Student Association
- DNSA stands for Deutsche Nationalsozialistische Arbeiterpartei
- DNSA stands for Domain Name Server Address
- DNSA stands for Domain Name System Auditing tool
- DNSA stands for Democratic Nurses Association of South Africa
DNSA