The Malolos Congress, formally known as the National Assembly, was the legislative body of the Revolutionary Government of the Philippines. Members were chosen in the elections held from June 23 to September 10, 1898. The assembly consisted of elected delegates chosen by balloting in provincial assemblies and appointed delegates chosen by the president to represent regions under unstable military and civilian conditions. The Revolutionary Congress was opened on September 15, 1898, at Barasoain Church in Malolos, Bulacan. President Emilio Aguinaldo presided over the opening session of the assembly.

Barásoain Church is a Roman Catholic church built in 1888 in Malolos, Bulacan, Philippines. It is about 42 kilometres (26 mi) from Manila. Having earned the title as the "Cradle of Democracy in the East, the most important religious building in the Philippines", and the site of the First Philippine Republic, the church is proverbial for its historical importance among Filipinos.