Canada's Wonderland, formerly known as Paramount Canada's Wonderland, is a 134-hectare (330-acre) amusement park located in Vaughan, Ontario, a municipality within the Greater Toronto Area. Opened in 1981 by the Taft Broadcasting Company and the Great-West Life Assurance Company, it was the first major theme park in Canada and remains the country's largest. Cedar Fair purchased the park from Paramount Parks in 2006, and they have owned and operated the park since then. In 2019, it was the most-visited seasonal amusement park in North America with an estimated 3.9 million guests. The park still retains this record, with an estimated 3.8 million guests in 2022 amid the COVID-19 pandemic.

Vaughan is a city in Ontario, Canada. It is located in the Regional Municipality of York, just north of Toronto. Vaughan was the fastest-growing municipality in Canada between 1996 and 2006 with its population increasing by 80.2% during this time period and having nearly doubled in population since 1991. It is the fifth-largest city in the Greater Toronto Area, and the 17th-largest city in Canada.