DTSA
| Acronym | Definition |
|---|---|
| DTSA | Down Town Santa Ana (Santa Ana, CA) |
| DTSA | Defense Technology Security Administration |
| DTSA | Discrete-Time Survival Analysis |
| DTSA | Desk Top Spectrum Analyzer |
| DTSA | Defense Technical Security Agency (now DTRA) |
| DTSA | Seaman Apprentice, Dental Technician Striker (Naval Rating) |