Josina Vieira de Araújo Peixoto (9 August 1857 – 5 November 1911) was the wife of Floriano Peixoto, the 2nd President of Brazil, and the second woman to serve as first lady of the country, between 1891 and 1894.

She was also the 1st second lady of Brazil from February 1891 until the resignation of Marshal Deodoro da Fonseca in November of the same year.

Josina and Floriano grew up together, as Peixoto had been adopted as her father's godson.

The ceremony took place at the Itamaracá plantation, near Murici, Alagoas.

[2][3] A year after Floriano's term as president, Peixoto was widowed.