Diamante d'Oeste is a municipality in the state of Paraná, located in the Southern Region of Brazil. It is one of the many small municipalities that make up the western portion of Paraná, a part of the country whose settlement and economy have long been tied to agriculture.
Like other municipalities in Paraná, Diamante d'Oeste is an administrative unit with its own local government, known in Brazil as a prefeitura, headed by a mayor (prefeito) and a municipal council (câmara municipal). The state of Paraná lies in southern Brazil, bordered by São Paulo to the north, Santa Catarina to the south, Mato Grosso do Sul to the west, and the Atlantic Ocean to the east.
Detailed information about the municipality's founding date, population, area, and economy is limited in the available source material, so only its status as a municipality within Paraná can be stated with confidence here.