Mercado Modelo, Central market and architectural structure in Bolivar, Montevideo, Uruguay.

Mercado Modelo is a former wholesale produce market in the Mercado Modelo–Bolívar barrio of Montevideo, Uruguay. Its main building, covering 19,000 square metres, was designed by architect Gualberto Rodríguez Larreta with a metal roof structure by Leopoldo Tosi and built by Bello y Reborati. In 2024 it reopened as Espacio Modelo, a covered public park, with its Art Deco exterior left unchanged.

In the 1930s the Sociedad de Agricultores Unidos del Uruguay called for a larger, more modern market away from the city centre. Construction began on the site of an old spring, with the firm Bello y Reborati and architect Gualberto Rodríguez Larreta in charge and Leopoldo Tosi contributing the metal roof structure. The new market, a 19,000 m² Art Deco building, opened on 31 January 1937, replacing the old Mercado Agrícola, which became a retail market.

The market gave its name to the surrounding barrio, officially Mercado Modelo–Bolívar, and to the nearby Frigorífico Modelo. The Montevideo band Los 8 de Momo wrote a song about it. Since 2024 the former trading floor hosts a covered public park with cowork areas, sports courts and food spaces.

The site occupies several blocks of the Mercado Modelo–Bolívar barrio, with the main hall covering 19,000 m² and a 1996 addition of 15,000 m². Since February 2024 it has operated as Espacio Modelo, a covered public park with recreation areas, cowork spaces, courts and food stalls. Access is on foot through the surrounding streets of the barrio.

Leopoldo Tosi, the building's designer, was the son of Italian immigrants and brought construction knowledge from Europe rather than local training. The metal frame was calculated to stand without interior support columns, which was unusual for a building of this size in the region at the time.