F
- (Simcoe County) Fergusonvale
- (Frontenac County) Fermoy
- (Perth County) Fernbank
- (District Municipality of Muskoka) Ferndale
- (Elgin County) Ferndell
- (Parry Sound District) Fern Glen
- (Middlesex County) Fernhill
- (Frontenac County) Fernleigh
- (Simcoe County) Fesserton
- (Ottawa) Ficko
- (Peterborough County) Fife's Bay
- (Elgin County) Fingal
- (Rainy River District) Finland
- (Ottawa) Fisher Glen
- (Ottawa) Fisher Heights
- (Peterborough County) Five Corners
- (Perth County) Flannigan Corners
- (Grey County) Flesherton
- (Thunder Bay District) Flint
- (Lennox and Addington County) Flinton Corner
- (Peterborough County) Flood's Landing
- (Regional Municipality of Waterloo) Floradale
- (Simcoe County) Floral Park
- (Lanark County) Flower Station
- (Oxford County) Foldens
- (Lanark County) Folger
- (District Municipality of Muskoka) Foot's Bay
- (Ottawa) Forbes
- (Huron County) Fordyce
- (Frontenac County) Forest