Thorold (2011 population 17,931) is a city in Ontario, Canada, located on the Niagara Escarpment. It is also the seat of the Regional Municipality of Niagara.

The Welland Canal passes through the heart of the city, and the Twin Flight Locks, located downtown, attract thousands of tourists annually.

Read more about Thorold:  History, Historical Sites, Communities, Trails, Parks, Arts and Culture, Fire Department, Thorold Blackhawks, Niagara Detention Centre