Cities - Business Locations in Ontario Canada
- Dacre (1)
- Dartmouth (1)
- Dashwood (11)
- Deacon (1)
- Deep River (62)
- Deer Lake (1)
- Delaware (25)
- Delhi (104)
- Delhi Ontario (1)
- Delta (7)
- Demorestville (4)
- Denbigh (9)
- Denfield (10)
- Desbarats (8)
- Desboro (10)
- Deseronto (48)
- Desoronto (1)
- Devlin (6)
- Dobbinton (4)
- Dobie (1)
- Dokis (2)
- Dokis First Nation (2)
- Don Mills (10)
- Dorchester (61)
- Dorion (3)
- Dornoch (1)
- Dorset (13)
- Douglas (6)
- Douro (3)
- Douro-Dummer (10)
- Dover Centre (3)
- Dowling (4)
- Downeyville (1)
- Downsview (25)
- Downtown Brampton (1)
- Drayton (34)
- Dresden (44)
- Drumbo (10)
- Drummond (1)
- Drummond/North Elmsley (1)
- Dryden (206)
- Duart (1)
- Dublin (8)
- Dubreuilville (5)
- Dunchurch (12)
- Dundalk (31)
- Dundas (235)
- Dundas/Hamilton (1)
- Dungannon (10)
- Dunnnville Npa 289 (3)
- Dunnville (101)
- Dunrobin (17)
- Dunsford (8)
- Duntroon (6)
- Dunvegan (3)
- Dunville (1)
- Durham (88)
- Durham Regional Municipality (7)
- Dutton (37)
- Dwight (39)
- Dyer's Bay (4)
- Dymond (6)
- Dysart and Others (5)