| SDTA | San Diego Technology Archive 
| Others |
| SDTA | San Diego Tourism Authority
| Others |
| SDTA | Saskatchewan Dental Therapists Association
| Others |
| SDTA | Scottish Dance Teachers' Alliance
| Others |
| SDTA | Sequoia District Teachers Association
| Others |
| SDTA | Sewing Dealers Trade Association
| Others |
| SDTA | Shepparton And District Tennis Association
| Others |
| SDTA | South Dakota Taxidermist Association
| Others |
| SDTA | South Dakota Telecommunications Association
| Others |
| SDTA | South Dakota Triathlon Association
| Others |
| SDTA | South Dakota Trucking Association
| Others |
| SDTA | Southern Dirt Track Association
| Others |
| SDTA | Southern Districts Touch
| Others |
| SDTA | Southern Districts Touch Association
| Others |
| SDTA | Southern Downs Tourist Association
| Others |
| SDTA | Structural Dynamic Test Article
| Others |
| SDTA | System Demonstration Test Article
| Others |
| SDTA | System Demonstration Test Articles
| Others |