L'International des Feux Loto-Qu?bec, also known as the Montreal Fireworks Festival, is a major international fireworks competition.

It has been held yearly since 1985 in La Ronde over the Dolphins lake and is named after its main sponsor, Loto-Qu?bec. They are hailed as the best fireworks in the world as well as being the largest festival of its kind on Earth. An estimated 3 million people watch them each season, with an approximated 6,000 fireworks set off 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 competition takes the form of a series of biweekly fireworks shows usually beginning in late June and ending in late July. The fireworks are synchronized to music which is also broadcast over a provincial radio station (RockD?tente 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.

However, tens of thousands to hundreds of thousands of people watch the fireworks for free from nearby locations (see Where to watch). Note that as of 2009, the events were held on Saturday nights only, from June to August, and this is indeed the formula in place for 2010.

Although the fireworks are shot at La Ronde on ?le Sainte-H?l?ne, they can easily be seen from many points in the Montreal area. Tens of thousands to hundreds of thousands of people watch the fireworks for free from nearby locations such as the riverfront in Longueuil; on the Jacques Cartier Bridge (open to pedestrian spectators only during the event); the Old Port of Montreal; or locations along the side or on a boat on the Saint Lawrence River.