Winston Churchill Boulevard is a long north-south roadway that predominantly forms the western boundary of Peel Region with the eastern boundaries of Halton Region and Wellington County, in Ontario, Canada. The road begins at Lakeshore Road in the south at the boundaries of the City of Mississauga the Town of Oakville, and ends in Caledon at East Garafraxa-Caledon Townline. The road is named in honour of British Prime Minister Sir Winston Churchill. The road is designated as Peel Regional Road 19 in the two segments where it forms Peel's boundary with the aforementioned divisions: