Orgue de tribune de la basilique Saint-Denis, Pipe organ in Basilique Saint-Denis, France

The organ sits on the west tribune of the Gothic Basilique Saint-Denis, with 69 stops spread across multiple divisions. This instrument remains fully playable and serves both religious services and concert performances.

The current organ was inaugurated in 1841 as the first major instrument built by Aristide Cavaillé-Coll. It introduced the innovative Barker lever mechanism, which fundamentally changed how organs were constructed during the 19th century.

The organ gave its name to a school: César Franck, patriarch of the French organ school, is tied to the instrument's early Romantic repertoire, and recordings by titular organist Pierre Pincemaille (1987–2018) document 19th-century works by Boëly, Alkan and Saint-Saëns. Quentin Guerillot has held the post since 2018.

Access to the organ comes through visiting the basilica during its regular opening hours. The best moments to hear the instrument playing are during scheduled religious services and concert performances held throughout the year.

The carved wooden case was designed in 1836 by François Debret, the basilica's chief architect, before the builder was even chosen. The instrument also holds 18th-century Italian harmonic pipes alongside the first Barker lever. In March 2019 it was vandalised and quickly repaired in time for a concert on 7 April; the culprit received seven months in prison.