Grand Théâtre, Opera house in Place du Ralliement, Angers, France

The Grand Théâtre is a theater building on Place du Ralliement with a main auditorium seating about 680 people, a broad entrance vestibule, a equipped stage, and multiple dressing areas. The structure displays stone walls with ornate interior spaces spanning several levels for audience seating.

A theater existed in Angers since Gallo-Roman times; a municipal theater opened in September 1795 in the former Grandes Écoles on Place du Ralliement. A fire in the night of 4–5 December 1865 destroyed it, and reconstruction began in 1867 under Alphonse Botrel, continued by Auguste Magne, and the new building was inaugurated in 1871.

The theatre's name comes from its role as Angers' municipal playhouse, and its season has long mixed opera, theatre and music. In 1879-1880 the resident troupe listed 16 administrators, 24 choristers, 26 actors and 40 musicians. Since 2003 Angers-Nantes Opéra has been in residence, and the hall also hosts exhibitions, the Fête de la Science and film screenings during the Premiers Plans festival.

The Grand Théâtre stands on Place du Ralliement in central Angers. Since 2023 the tram line serves the Ralliement stop again after the 2021 diversion; several bus lines also stop nearby. The building is entered from the square, with the two former cafés flanking it.

The four muses in the first-floor niches are, from left to right, lyric poetry, comedy, tragedy and music. Above them, the curved pediment carries the arms of the city of Angers, flanked by cherubs representing fame, eloquence and history on one side and satire, music and drama on the other.