W
- (Hastings County) West Huntingdon
- (Middlesex County) West McGillivray
- (Comtés unis de Prescott et Russell) Westminster
- (Ottawa) West Osgoode
- (Peterborough County) Westwood
- (United Counties of Leeds and Grenville) Wexford
- (Middlesex County) Whalen Corners
- (Bruce County) Whitechurch
- (Parry Sound District) Whitehall
- (Ottawa) Whitehaven
- (Hastings County) White Lake
- (Renfrew County) White Lake
- (Elgin County) Whites
- (District Municipality of Muskoka) Whiteside
- (Parry Sound District) Whitestone
- (Timiskaming District) Whitewood Grove
- (Dufferin County) Whitfield
- (Nipissing District) Whitney
- (Dufferin County) Whittington
- (Durham) Wick
- (Northumberland County) Wicklow
- (United Counties of Leeds and Grenville) Wights Corners
- (Manitoulin District) Wikwemikong
- (Haliburton County) Wilberforce
- (Regional Municipality of Niagara) Wilcox Corners
- (Grey County) Wilcox Lake
- (Lambton County) Wilkesport
- (Frontenac County) Wilkinson
- (Bruce County) Williscroft
- (United Counties of Leeds and Grenville) Willowbank