| Acronym | Definition |
|---|
| STDC➣South Taranaki District Council (New Zealand) |
| STDC➣South Texas Development Council |
| STDC➣Sexually Transmitted Disease Control (state government program) |
| STDC➣State Tourism Development Corporation (India) |
| STDC➣Strategic Tactics Development Center |
| STDC➣Stay Top Dead Center |