| Abbreviation | Definition |
|---|---|
| DON | DiamonEx, LTD. |
| DOT | Deutsche Office Trust |
| DOW | Downer EDI Ltd |
| DOWKOP | Downer Edi Limited |
| DOWKRR | Downer Edi Limited |
| DRA | Dragon Mining Limited |
| DRK | Drake Resources Ltd |
| DRM | Doray Minerals Limited |
| DRX | Diatreme Resources Ltd |
| DRXO | DRXO |
| DSB | Delta Sbd Limited |
| DSN | Desert Mines and Minerals, LTD. (formerly Desert Energy, LTD.) |
| DSQ | Datasquirt Ltd |
| DTE | Dart Energy Limited |
| DTG | Daton Group Australia, LTD. |
| DTL | Data#3 Ltd |
| DTM | Dart Mining NL |
| DTMO | DTMO |
| DTQ | Drill Torque Limited |
| DTQO | Drill Torque Limited |