Teatro Municipal Primero de Mayo, Theatre and concert hall in Santa Fe, Argentina

Teatro Municipal Primero de Mayo is a French Neoclassical theater on the San Martín pedestrian street in central Santa Fe. Its façade is crowned by Nicolás Gulli's sculptures of music and dance. Inside are three halls: the Sala Mayor seating 850, the Leopoldo Marechal Salon seating 250, and the Juan Franze Salon for ballet.

The building opened in 1905 after two years of construction under architect Augusto Plou following Louis XV style principles. Its European-influenced architecture has shaped the cultural life of the city ever since.

The exterior displays sculptures by Nicolás Gulli depicting music and dance, reflecting the artistic identity of this performance venue. Inside, visitors encounter a circular painting by Nazareno Orlandi that defines the decorative character of the main hall.

The venue is located at San Martín 2020 in Santa Fe's commercial district and is easy to access. A museum in the building typically opens before performances, allowing visitors to explore its background.

The main hall's chandelier, shaped like a spiderweb, was moved here from Santa Fe's colonial cabildo. The 2005 restoration, inaugurated on May 25 for the theater's centennial, removed a modern veranda that blocked the façade and won second prize in the Ibero-American Cultural Patrimony Restoration Contest.