Musée Pop, Popular culture museum in Trois-Rivières, Canada.

Musée Pop is a social history museum in downtown Trois-Rivières devoted to Quebec popular culture, covering everyday practices, traditions, beliefs, work, media and leisure. Its complex comprises the main building and the Old Prison of Trois-Rivières, built between 1816 and 1822 to plans by architect and sculptor François Baillairgé and classified as a heritage building in 1978.

The Old Prison was built between 1816 and 1822 and operated for over 160 years as one of Canada's longest-running detention facilities. The institution closed in 1986 and was later adapted to house this museum and its collections.

The permanent exhibition Attache ta tuque! was built from a 2018 survey of Quebecers, who named language, food, hockey, First Nations, legends, ingenuity, winter and music as the most representative themes of their culture. Each thematic zone opens with a typical Quebec expression, and a separate route, La virée des flos et des flounes, is designed for children.

Visitors can explore the museum independently or join guided tours that cover both the current exhibitions and the former prison areas. Advance reservations are recommended for group visits to ensure a better-organized experience.

The Vieille prison de Trois-Rivières, built 1816–1822 to plans by François Baillairgé, closed in 1986 for unsanitary conditions, then the oldest working jail in Canada. Its initial capacity was about forty inmates, yet over a hundred were held there at once at times. The building was classified a heritage property in 1978.