(Latin Steampunk) 1864 Riograndense Constituent Assembly election

The election to the Constituent Assembly of the Riograndense Republic was held on June 25, 1864 in order to elect the 150 members of the Constituent Assembly. This election was held as a direct result of the military coup that was led by the Radical Party in May. This coup led to the suspension of the old constitution and the formation of a Provisional Government under Antônio de Sousa Neto. The new Constituent Assembly was tasked with creating a new constitution. This was the first election in Riograndense history where all males were eligible to vote. This election was also held using proportional representation.

The election resulted in a landslide for the Radical Party because of its large base of support and its reformist appeals. Their control over the majority of seats granted them the capacity to unilaterally decide on the text of the future constitution. The Constituent Assembly would eventually adopt the Radical-influenced New Constitution in September 1864.