The Municipal Theatre of Ho Chi Minh City, also known as Saigon Municipal Opera House  is an opera house in Ho Chi Minh City, Vietnam. It is an example of French Colonial architecture in Vietnam.

Built in 1897 by French architect Eugène Ferret as the Opéra de Saïgon, the 500 seat building was served as the house of the unicameral National Assembly from 1956 to 1967  and also held the People’s Assembly of the Republic of South Vietnam from 1975. It was not until 1976 that it was again used as a theatre .

The Municipal Theatre is a smaller counterpart of the Hanoi Opera House, which was built between 1901 and 1911, and shaped like the Opéra Garnier in Paris with 800 seats to entertain French colonists. The Municipal Theatre owes its specific characteristics to the work of architect Félix Olivier, while construction was under supervision of architects Ernest Guichard and Eugène Ferret in 1900. Its architectural style is influenced by the flamboyant style of the French Third Republic, with the façade shaped like the Petit Palais which was built in the same year in France. The house had a main seating floor plus two levels of seating above, and once was capable of accommodating 1,800 people. The design of all the inscriptions, décor, and furnishings were drawn by a French artist and sent from France.