St. Sebastian Cathedral, Ribeirão Preto, Catholic cathedral in Ribeirão Preto, Brazil.

St. Sebastian Cathedral sits at the center of Ribeirão Preto and dominates the plaza with its solid stone facade. Large stained glass windows light the interior with colored reflections, while the space inside features ornate columns, intricate woodwork, and religious sculptures throughout.

Construction began in 1904 and finished in 1909, replacing an earlier church that had suffered structural collapse. This new building marked a turning point in the expanding city's religious and architectural development.

The cathedral is also a burial place: under its floor lie all the bishops and archbishops who died in office, from Dom Alberto José Gonçalves to Dom Joviano de Lima Junior, along with Monsignor João Lauriano, vicar-general from 1927 until his death in the 1970s. A tomb found during renovation works holds the coffee farmer Manoel da Cunha Diniz Junqueira, of the 1892 building commission, and his wife Emerenciana Constança Junqueira.

The entrance is on Rua Florêncio de Abreu, between Rua Tibiriçá and Rua Visconde de Inhaúma, in the city centre. The building and its surroundings are protected by Condephaat, so the area around the entrance is the historic core rather than a plaza. The bishops and archbishops who died in office are buried under the cathedral floor, and the tomb of Manoel da Cunha Diniz Junqueira and his wife Emerenciana lies there too.

The building holds CONDEPHAAT status, a preservation classification that protects its early 20th-century architecture and grounds from modification. This official recognition means any structural changes require approval to keep the monument intact for the future.