The Montreal Fireworks Festival (French: L'International des Feux Loto-Québec) is the largest fireworks competition in the world. It has been held yearly in La Ronde over the Dolphin Lake since 1985 and is named after its main sponsor, Loto-Québec.

It hosts an estimated 3 million spectators each year, with approximately 6,000 fireworks set off during each show. Each summer, eight or nine pyrotechnical companies from different countries present a 30-minute-long pyromusical show, competing for the Gold, Silver and Bronze Jupiters or trophies.

The 1985 edition was the very first such competition ever held in North America. It was described as the must-see event of the summer. The festival’s final performance reportedly drew nearly 1 million people.

Originally, competitors could enter one of two different categories. They could present a classical demonstration of just fireworks alone, or they could display a presentation of fireworks set to music. Since 1987, the classical category has been suspended. Today, performances are entirely set to music and have an overarching theme.

The fireworks are synchronized to music, which is also broadcast over a provincial radio station (RockDétente in 2005, Rythme FM 2006-onwards). Spectators can purchase tickets to have reserved seats in La Ronde: they can buy them on site, on-line or through the Admission group to obtain an exceptional view of the lower altitude display and the whole perspective.

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