SBA may stand for:
- Survivable Branch Appliance
- Santa Barbara Airport
- Santa Barbara Airlines
- SBA Towers, radio masts and towers
- School-based assessment, a programme of Hong Kong Diploma of Secondary Education which composes parts of the marks
- Search-based application, computer applications which include search as part of a domain-oriented computer process
- Service-based architecture, a generic form of service-oriented architecture
- Short backfire antenna
- Skilled birth attendant, a health care practitioner in childbirth care
- Sick Berth Attendant, the title of a medical assistant in the UK Royal Navy
- Sidi Bel Abbès, city and university in Algeria
- Singapore Broadcasting Authority
- Microsoft Office Accounting, renamed from Small Business Accounting
- Small Business Administration
- Student bar association
- Structure-based assignment
- Sovereign Base Areas
- Space-based architecture
- Sparse Bundle Adjustment, a high performance software for Bundle adjustment
- Sport Boys Association, a Peruvian football (soccer) club
- Susan B. Anthony
- Susan B. Anthony List (SBA List)
- Simulation Based Acquisition
- System Behavior Analysis (IT information management)
- Soybean agglutinin
- Naval Aircraft Factory SBN (Brewster SBA), naval attack aircraft
- Stand-By Arrangement of the International Monetary Fund (IMF)
- Swiss Banking Association
- Switchback Alarm
- Sandown Bay Academy
- Sustainable Building Advisor