Cirque du Soleil (French for "Circus of the Sun," in English pronounced /sɜrk duː soʊˈleɪ/ ) is an entertainment company. Based in Montréal, Québec, Canada and located in the inner-city area of Saint-Michel, it was founded in Baie-Saint-Paul in 1984 by two former street performers, Guy Laliberté and Daniel Gauthier.

Initially named Les Échassiers , they toured Quebec in 1980 as a performing troupe and encountered financial hardship that was relieved by a government grant in 1983 as part of the 450th anniversary celebrations of Jacques Cartier's discovery of Canada. Le Grand Tour du Cirque du Soleil was a success in 1984, and after securing a second year of funding, Laliberté hired Guy Caron from the National Circus School to re-create it as a "proper circus". No ring and no animals helped make Cirque du Soleil the modern circus ("Cirque Nouveau"/New Circus) that it is today.

Each show is a synthesis of circus styles from around the world, with its own central theme and storyline. They draw the audience into the performance through continuous live music, with performers rather than stagehands changing the props, and by having no curtains. After critical and financial successes (Los Angeles Arts Festival) and failures in the late 1980s, Nouvelle Expérience was created – with the direction of Franco Dragone – which not only made Cirque profitable by 1990, but allowed it to create new shows.

Cirque expanded rapidly through the 1990s and 2000s, going from one show with 73 employees in 1984 to approximately 3,500 employees from over 40 countries producing 15 shows over every continent except Africa and Antarctica, with an estimated annual revenue exceeding US$600 million. The multiple permanent Las Vegas shows alone play to more than 9,000 people a night, 5% of the city's visitors, adding to the 70+ million people who have experienced Cirque. In 2000, Laliberté bought out Gauthier, and with 95% ownership, has continued to expand the brand. Several more shows are in development around the world, along with a television deal, women's clothing line and the possible venture into other mediums such as spas, restaurants and nightclubs.

Cirque's creations have been awarded numerous prizes and distinctions, including Bambi, Rose d'Or, three Gemini Awards and four Primetime Emmy Awards. In 2004, Interbrand's poll of brand names with the highest global impact ranked Cirque du Soleil as number 22.