D
- D'Ambrosio Park
- D'Arcy Island Marine Park
- D'Aubigny Creek Park
- Daawuuxusda Heritage Site/Conservancy
- Dahl Lake Provincial Park
- Dala-Kildala Rivers Estuaries Provincial Park
- Dalem Lake Provincial Park
- Dalewood Conservation Area
- Dall River Old Growth Provincial Park
- Damaxyaa Heritage Site/Conservancy
- Damdochax Protected Area
- Dan Patterson Conservation Area
- Dana-Jowsey Lakes Provincial Park
- Danielson Provincial Park
- Darke Lake Provincial Park
- Darlington Provincial Park
- David Smallwood Provincial Park
- Davis Lake Provincial Park
- Dawley Passage Provincial Park
- De la Republique Provincial Park
- Dead Man's Island Park
- Deadman's Bay Provincial Park
- Deas Island Regional Park
- Deer Park
- Denetiah Provincial Park
- Denis O'Connor Park
- Denison-Bonneau Provincial Park
- Derby Reach Regional Park
- Desolation Sound Marine Provincial Park
- Devereux Park
- Devil's Glen Provincial Park
- Devil's Punchbowl Provincial Park
- Devon Down Park
- Dewitt Park
- Diana Lake Provincial Park
- Dildo Run Provincial Park
- Dillberry Lake Provincial Park
- Dinosaur Provincial Park
- Dionisio Point Provincial Park
- Discovery Island Marine Provincial Park
- Dixie Cove Marine Provincial Park
- Dog Bay Pond Provincial Park
- Dollar Lake Provincial Park
- Domaine du lac des Cèdres
- Domaine écologique de Mont Radar
- Domaine Maizerets
- Dominion Beach Provincial Park
- Donald M. Gordon Chinguacousy Park
- Donald Street Park
- Donegal Park
- Dory Point Territorial Park
- Douglas Park
- Douglas Provincial Park
- Downing Provincial Park
- Downsview Park
- Drewry Point Provincial Park
- Driftwood Canyon Provincial Park
- Driftwood Provincial Park
- Drumbeg Provincial Park
- Dry Gulch Provincial Park
- Dry Island Buffalo Jump Provincial Park
- Duck Lake Protected Area
- Duck Mountain Provincial Park
- Duck Mountain Provincial Park
- Duff Roblin Provincial Park
- Dufferin Park
- Duffey Lake Provincial Park
- Duley Lake Provincial Park
- Dundas Driving Park
- Dundas Valley Conservation Area
- Dundee Provincial Park
- Dune Za Keyih Provincial Park and Protected Area
- Dungeon Provincial Park
- Dunn Peak Protected Area
- Dunnet Regional Park
- Dunvegan Provincial Park
- Dyments Pond Park
- Dzawadi/Klinaklini Estuary Conservancy
- Dzawadi/Upper Klinaklini River Conservancy
