SDA
SDA is an abbreviation for:
- Saddam International Airport , Iraq (former IATA code), see Baghdad Airport
- Service Dominated architecture , a basic IT architecture to enable customer-centered solutions
- Seventh Day Adventists , an evangelical free church, see Seventh-day Adventists
- Singapore Democratic Alliance , a political party in Singapore
- Social democratic action , a pro-communist split from the SPD from 1949 in Berlin
- Stranka demokratske akcije , a political party in Bosnia and Herzegovina
- Keystone-SDA , the national news agency in Switzerland, formerly the Swiss dispatch agency