| DAC | Dacha Capital Inc. | TSX Venture | Active |
| DJI | Dajin Resources Corp. | TSX Venture | Active |
| DAL | Dalmac Energy Inc. | TSX Venture | Active |
| DNA | Dalradian Res Inc. J | TSX | Active |
| DNA.WT | Dalradian Res Wt J | TSX | Active |
| DSA | DALSA Corporation | TSX | Active |
| DL | Danier Leather SV | TSX | Active |
| WUF | Darford International Inc. | TSX Venture | Active |
| DAN | d'Arianne Resources Inc | TSX Venture | Active |
| DBL | Darnley Bay Resources Limited | TSX Venture | Active |
| DGI.DB.A | Data Group 6.00% Deb | TSX | Active |
| DGI.DB | Data Group 6.75% Deb | TSX | Active |
| DGI.UN | Data Group Income Un | TSX | Active |
| DTC | Datex Technologies Corporation | TSX Venture | Active |
| DAI.H | Datinvest International Ltd. | TSX Venture | Active |
| DTL.P | Dauntless Capital Corp | TSX Venture | Active |
| DHF.UN | Davis + Henderson Un | TSX | Active |
| DYU.H | Dawson Gold Corp. | TSX Venture | Active |
| DFE | Day4 Energy Inc. J | TSX | Active |
| DAY.DB.C | Daylight 10% 2013 Db | TSX | Active |
| DAY.DB.D | Daylight 6.25 2014Db | TSX | Active |
| DAY.DB.B | Daylight 8.5% 2012Db | TSX | Active |
| DAY | Daylight Energy Ltd. | TSX | Active |
| DTE | Daytona Energy Corp | TSX Venture | Delisted |
| DBO.A | D-Box Technologies Inc. | TSX Venture | Active |
| HYB.UN | DDJ High Yld Fund Un | TSX | Active |
| DD | DDS Wireless Int'l J | TSX | Active |
| DNC | Deans Knight Corp. | TSX | Active |
| DKI.UN | Deans Knight Incm Un | TSX | Active |
| DEC | Decade Resources Ltd | TSX Venture | Active |
| DWL.UN | Deepwell Engy Tr Un | TSX | Delisted |
| DTX | DeeThree Exploration Ltd | TSX Venture | Active |
| DEF | Defiance Capital Corp | TSX Venture | Active |
| DEJ | Dejour Enterprises J | TSX | Active |
| DLL | Deloro Resources Ltd. | TSX Venture | Active |
| DEE | Delphi Energy Corp. | TSX | Active |
| DUR | Delta Uranium Inc | TSX Venture | Active |
| DML | Denison Mines Corp | TSX | Active |
| DML.WT.A | Denison Mines Wt A | TSX | Active |
| DTA | Dentonia Resources Ltd. | TSX Venture | Active |
| DEQ | DEQ Systems Corp. | TSX Venture | Active |
| DRK | Derek Oil & Gas Corporation | TSX Venture | Active |
| DSG | Descartes Systems | TSX | Active |
| DSR.P | Desco Resources Inc | TSX Venture | Delisted |
| DAU | Desert Gold Ventures Inc | TSX Venture | Active |