The Jorge Luis Hirschi Stadium (Spanish: Estadio Jorge Luis Hirschi), also known as Estadio Uno, is a football stadium located in the city of La Plata, Argentina. With a seat capacity of 35,530, the stadium is the home field of club Estudiantes de La Plata.

Because of its technological innovations and environmental sustainability, the stadium is regarded as one of the most modern venues in Argentina. The stadium is also one of the oldest in Argentina so it was established at "Paseo del Bosque" park in 1906.

The stadium is named after Jorge Luis Hirschi, who served as Estudiantes' president between 1927 and 1932, and is located on 1st Avenue between 55th and 57th Streets. It is thus also known as 1 y 57 (referring to its location on 1 and 57 streets). It was formally inaugurated on 25 December 1907. The arena was the venue where Estudiantes obtained the 1913 amateur league title, and where fans enjoyed los profesores ("the professors"), the famous 1930s offensive line of Lauri-Scopelli-Zozaya-Ferreyra-Guayta.

In its initial incarnation (1907 to 2005) the stadium held up to 28,000 people, mostly standing-room, even though security measures would reduce its actual capacity to about 22,000. Its relatively meager size made Estudiantes use Boca Juniors' Bombonera stadium for its Copa Libertadores games.

The Estudiantes de La Plata drew an average home attendance of 30,281 in the Argentine top-flight football league in 2024.

In 1906, the Estudiantes executives focused on building a venue that could be suitable for Primera División matches so it was required by the Argentine Football Association to admit club's registration with the body. It was because the original field on 19 and 51 avenues (where the Islas Malvinas Park is placed nowadays) was not in line with the requirements to host official matches. President of the club, Nazario Roberts, make the arrangements and the Government of Buenos Aires Province gave the club a land on 1 and 57 street, where a velodrome functioned. With a capacity for 2,000 spectators, the stadium was inaugurated on 25 December 1907.

After the pitch was remodelated, in 1911 a roofed grandstand was built. In 1937 a new lighting system was installed and the stadium became the first major venue in Argentina to host night games, inaugurated in a friendly match v Uruguayan side Peñarol. Those improvements allowed Estudiantes to participate in the Torneo Internacional Nocturno Rioplatense, a Summer tournament contested by Argentine and Uruguayan clubs.

The official grandstand, remodeled during the presidency of Pedro Osácar in the 1940s, was destroyed by fire in 1960 and then replaced by a roofed grandstand built entirely in concrete. It would be used until the venue's demolition in 2007.

In September 2005, the stadium was closed down for league games because of new safety regulations that forbid wooden stands. Even though a judicial restraining order exempted Estudiantes from the prohibition, the La Plata city government refused to comply. This situation started a rift between the club and mayor Julio Alak.

When Estadio Ciudad de La Plata was built for the city of La Plata, both Estudiantes and Gimnasia y Esgrima decided against relocating their home games. Immediately after the closure, Estudiantes requested permission for upgrading its stadium to no less than 20,000 seats plus 15,000 standing room, but the mayor refused, insisting that the new stadium should be used.

As a stopgap measure, for the 2005 Apertura Estudiantes played its home games in the nearby Gimnasia y Esgrima stadium, Estadio Juan Carmelo Zerillo, paying a rent of 10% gross income, plus an undisclosed amount for each attending season ticketholder. For the 2006 Clausura, Estudiantes moved its home games to the Quilmes A.C. venue, Estadio Centenario.

In April 2006, a new judicial order allowed the re-opening of 1 y 57, but Alak intervened again to avoid this from happening. At this point, Estudiantes management floated the idea of erecting a new stadium in the port town of Ensenada, a few kilometers east of La Plata.

In August 2006 it was reported that Estudiantes and the city of La Plata reached an agreement to rebuild the stands for a capacity of 20,000, all seated. The city stadium would be used for attendances exceeding that number. The eastern stands will feature the signage Tierra de Campeones (Land of Champions), which was used by fans since the 1960s to refer to 1 y 57.

Player Juan Sebastián Verón was instrumental in securing the new stadium agreement. Argentine journalists indicated that with this intervention (as well as a series of donations to upgrade the club's training facilities in City Bell) he is building his reputation towards a future bid for the club presidency, which in fact happened when Verón was elected president of the club in 2014.

On October 20, 2006, Estudiantes announced that, during the renovation work, it would use the city stadium for home games, as Coprosede (the football security authority) would not grant security clearance for Estudiantes to play home games at Estadio Centenario in Quilmes. Estudiantes fans also became less apprehensive about the city stadium after the historic 7–0 win over Gimnasia in October 2006, and the championship celebrations that took place in the stands, two months later.