N
- (Middlesex County) Nilestown
- (Rainy River District) North Branch
- (Lanark County) Nolans Corners
- (York) Nobleton
- (Parry Sound District) Nobel
- (Parry Sound District) Niweme
- (District Municipality of Muskoka) Nith Grove
- (Perth County) Nithburg
- (Parry Sound District) Nipissing Beach
- (Thunder Bay District) Nipigon
- (Renfrew County) Northcote
- (Huron County) Nile
- (Simcoe County) Nicolston
- (Lennox and Addington County) Nicholsons Point
- (Simcoe County) New Uhthoff
- (Durham) Newtonville
- (Perth County) Newton
- (York) New Scotland
- (Elgin County) New Sarum
- (District Municipality of Muskoka) Norway Point
- (Haldimand County) Normandale
- (Parry Sound District) Nipissing
- (Lanark County) Numogate
- (Parry Sound District) Novar
- (Simcoe County) Nottawa
- (Ottawa) Notre-Dame-des-Champs
- (Nipissing District) Nosbonsing
- (Oxford County) Norwich
- (Regional Municipality of Waterloo) New Prussia
- (Regional Municipality of Waterloo) North Woolwich