Japan Square is a public space in the city of Curitiba, the capital of the Brazilian state of Paraná.

Paraná has the second-largest Japanese community in Brazil, behind São Paulo, and as of 2023 is home to more than 32,000 of its descendants.

The memorial includes the Hideo Handa Library, opened in 2008,[1] in honor of the writer of Japanese descent.

A sculpture of Buddha in the center of one of the lakes was placed to symbolize the brotherhood between the cities of Curitiba and Himeji.

There is also a stone-carved lantern, a traditional symbol in Japanese gardens, donated by the legislative assembly of Hyogo, the sister region of Paraná, in 1979.