José Antônio Pimenta Bueno, Marquis of São Vicente, (4 December 1803 – 19 February 1878) was a Brazilian magistrate, diplomat and politician.

He entered public service in the province of São Paulo at the age of twenty-one.

[2][3] In 1833 he was elected councilor for the province of São Paulo and, two years later, appointed governor of Mato Grosso.

[2] Later he would become an advisor to the Secretariat for Foreign Affairs and a plenipotentiary for the negotiation of agreements with Argentina and the United Kingdom.

[2] He was abandoned as a baby at the door of the surgeon-major José Antônio Pimenta Bueno and his wife Mariana Benedita de Faria e Albuquerque, who adopted him.