| School Name | City | Province |
|---|---|---|
| D. Roy Kennedy | Ottawa | Ontario |
| Da Vinci | Ajax | Ontario |
| Dallington | Toronto | Ontario |
| Danforth Gardens | Toronto | Ontario |
| David Bouchard | Oshawa | Ontario |
| David Hornell | Etobicoke | Ontario |
| David Lewis | Scarborough | Ontario |
| Davie Jones | Pitt Meadows | British Columbia |
| Deer Park | Toronto | Ontario |
| Delaware Central | Delaware | Ontario |
| Diefenbaker | Toronto | Ontario |
| Dogwood | Surrey | British Columbia |
| Dolphin | MISSISSAUGA | Ontario |
| Doncrest | Richmond Hill | Ontario |
| Donnan | Edmonton | Alberta |
| Dorothy Peacock | Langley | British Columbia |
| Dr. C. F. Cannon | Oshawa | Ontario |
| Dr. Charles Best | Burlington | Ontario |
| Dr. G.J. MacGillivray | Courtice | Ontario |
| Dr. Robert Thornton | Whitby | Ontario |
| Dr. Roberta Bondar | Maple | Ontario |
| Dr. Ross Tilley | Bowmanville | Ontario |
| Dr. S.J. Phillips | Oshawa | Ontario |
| Duke of Cambridge | Bowmanville | Ontario |
| Dundana | Dundas | Ontario |
| Dunlace | Toronto | Ontario |
| Dunning-Foubert | Ottawa | Ontario |
| Durham Academy SS | Oshawa | Ontario |
| DVMS (*) | Dundas | Ontario |
