Paraná State Day is a regional public holiday observed in the state of Paraná in Southern Brazil. The holiday commemorates the day when the region officially became a province on December 19th, 1853. Previously, Paraná was part of the province of São Paulo, but its distinct cultural and economic status led to it being recognized as a separate province.

The holiday represents a moment of pride and identity for the people of Paraná, or Paranaenses as they are locally known. On this day, locals commemorate their history and heritage through various festive activities and events. This includes regional dances, music, parades, and traditional food preparations that showcase the cultural richness of the region. It's a moment of communal celebration that unites the state's diverse population.

Paraná State Day also underscores the importance of the state within Brazil's national context. Paraná is known for its vast agricultural production and is an essential player in the country's economic scene. The holiday not only celebrates the past but also the state's continuous growth and its contributions to the Brazilian nation. It's a day highlighted by a shared sense of pride and thankful reflection amongst Paranaenses, who honor their heritage while looking forward to their future.