Dante Martins de Oliveira was a Brazilian politician who was the governor of Mato Grosso state and the mayor of Mato Grosso's capital, Cuiabá, for three terms. He was also a federal deputy who became the Minister of Agrarian Development under president José Sarney from 1986 to 1987. He is well known for his work with the Diretas Já movement, which fought for the direct election of presidents in Brazil. As a federal deputy, he became most well known for proposing a constitutional amendment that would have mandated for direct presidential elections, the Dante de Oliveira amendment.

Diretas Já was a 1984 civil movement in Brazil which demanded direct presidential elections.