Santa Isabel Theater, Neoclassical theater in Santo Antonio district, Recife, Brazil.

Santa Isabel Theater is a neoclassical building on Praça da República, with pale pink walls, white trim and a projecting entrance portico whose stone balustrade sits above three arched openings. Round-arched windows with white frames and fanlights line both levels, and a broad gabled roof of red-brown tiles covers the main block. It seats 850 and houses the Recife Symphony Orchestra.

The French engineer Louis Leger Vauthier designed and built this structure between 1841 and 1850 under commission from Francisco do Rego Barros. Its construction coincided with a period of growth and development in Recife, establishing it as a cultural hub for the city.

The theater is named after Princess Isabel of Braganza, daughter of Emperor Pedro II, not a saint; the name was adopted on 18 May 1850, the day of its inauguration, on a suggestion from the Marquis of Paraná. The opening performance was Mendes Leal's play O Pajem de Aljubarrota. The Recife Symphony Orchestra is housed in the building.

The building offers guided tours where visitors can explore the interior, learn about its architecture, and understand its role in the city's cultural life. It is helpful to check the schedule beforehand, as tour availability changes depending on performances and events happening that week.

The theater's name was changed from Teatro de Pernambuco just before its inauguration on 18 May 1850, on a suggestion by Honório Hermeto Carneiro Leão, Marquis of Paraná, to honor Princess Isabel, daughter of Pedro II. The opening night featured the play O Pajem de Aljubarrota by Portuguese writer Mendes Leal.