Plaza Primera Junta, Public square in Caballito, Buenos Aires, Argentina

Plaza Primera Junta is a narrow, linear square in Caballito that opens Rosario Street off Rivadavia Avenue. It links the Line A Primera Junta subway station, several bus routes and the Caballito station of the Sarmiento Line. The statue of Miguel de Azcuénaga stands on the square, moved west from Rojas Street after the subway station opened in 1914.

The square was inaugurated on May 25, 1908, under the name Plaza Primera Junta, replacing the earlier Paseo Rivadavia. For the centennial of the May Revolution, a statue of Miguel de Azcuénaga, a member of the 1810 junta, was unveiled on December 31, 1910. When the Primera Junta subway station opened four years later, the statue was moved west from its original spot at Rojas Street.

A permanent book fair has operated here since 1976, with dedicated vendor stalls set up by the municipality in 1984 to showcase local literature. The space has become a gathering point where readers and book lovers meet regularly.

The space was thoroughly renovated in 2006, with new paving, improved lighting, and extra seating areas that make it a comfortable place to spend time. Its excellent connections to public transit make it easy to reach and navigate.

Two high-relief sculptures on the flagpole depict La Porteña locomotive and La Pulpería tavern, representing aspects of local transportation and social history. These artistic details tell the story of everyday life and economic activity in the area during earlier times.