HEAVY MONTRÉAL (formerly known as Heavy MTL) is a three-day, summer heavy metal and hard rock music festival held annually at Parc Jean-Drapeau in Montreal, Quebec, Canada. It also includes various other events at different venues across the city. It is one of the largest heavy metal festivals in the world, with usually around 70,000 people attending each year. The "MTL" in the former name, Heavy MTL, served as both an abbreviation for "Montreal" and "Metal." In 2014, the festival was officially renamed as "HEAVY MONTRÉAL."
In 2011, a sister event, Heavy T.O., was created for Downsview Park in Toronto, Ontario, Canada. Both events were held during the same weekends, with most bands playing one day in Montreal and the other in Toronto. Despite the Toronto event's popularity, however, promoters ceased operations there after the festival's 2012 incarnation.
For the 2014 festival, Heavy MTL was officially rebranded as "HEAVY MONTRÉAL." This was done as an "evolution" of the festival, with efforts made to include a wide array of styles in its programming.