The Montreal International Jazz Festival is an annual jazz festival held in Montreal, Quebec, Canada. The Montreal Jazz Fest holds the 2004 Guinness World Record as the world's largest jazz festival. Every year it features roughly 3,000 artists from 30-odd countries, more than 650 concerts, and welcomes over 2 million visitors as well as 300 accredited journalists. The festival takes place at 20 different stages, which include free outdoor stages and indoor concert halls.

Montreal is the largest city in the province of Quebec, the second-largest in Canada, and the tenth-largest in North America. Founded in 1642 as Ville-Marie, or "City of Mary", it is now named after Mount Royal, the triple-peaked hill around which the early settlement was built. The city is centred on the Island of Montreal and a few much smaller peripheral islands, the largest of which is Île Bizard. The city is 196 km (122 mi) east of the national capital, Ottawa, and 258 km (160 mi) southwest of the provincial capital, Quebec City.