(Latin Steampunk) 1880 Riograndense legislative election

The 1880 Riograndense legislative election was held on September 4, 1880 to determine the composition of the fifth National Assembly. Held during President Martins' first term, the election de facto functioned as a referendum on his long-term program of industrialization and modernization of the nation. This election marked a shift in national politics, as the Conservative Party pivoted towards agrarianism and Catholic conservatism, calling for the introduction of religious education and state funding for religious hospitals. The Radical Party ran on their legacy of economic liberalism and social progressivism while firmly supporting Martins' vision of a modernized country.

Despite a diminished number of seats and share of the vote, the Radical Party retained its majority in the National Assembly. This was the fifth straight victory for the Radical Party, marking their continued domination over Riograndense politics. Osvaldo Steindl was subsequently re-elected as vice president.