| Abbreviation | Definition |
|---|---|
| DSO | Designated School Official |
| DSO | Distribution System Operator |
| DSO | Distribution System Overseer |
| DSP | Deputy Superintendent of Police |
| DSP | Direct Support Professional |
| DSQR | Designated Source Quality Representitive |
| DSR | Dealer Sales Representative |
| DSTE | Divisional Signal Telecommunication Engineer |
| DSV | Disgruntled Side Villain |
| DSV | Drilling SuperVisor |
| DTC | Distributed Transaction Coordinator |
| DTC | Department Technology Coordinator |
| DTDC | Desk-To-Desk Courier |
| DTL | Deputy Team Leader |
| DTO | District Transport Officer |
| DTOE | District Traffic Operations Engineer |
| DTR | Dietetic Technician, Registered |
| DTS | Don't Talk Software |
| DTS | Drive Train Specialists |
| DU | Desktop Underwriter |