Bornito de Sousa Baltazar Diogo (born 23 July 1953) is an Angolan politician who was the third vice president of Angola, from 2017 to 2022.

He was the vice presidential candidate for the MPLA in the 2017 Angolan general election, running alongside João Lourenço and a member of the Constituent Assembly since 2010.

His father, Job Baltazar Diogo, was a primary school teacher, Quimbundo-Portuguese translator and once imprisoned by the Portuguese security agency, PIDE-DGS.

[2] He started as a MPLA militant in Luanda (Marçal district) at the age of 16, in 1969, influenced by the events happening in neighbouring Congo, the arrest of his father, Job Baltazar Diogo, and his maternal uncle, Dr. Luís Micolo.

[5] De Sousa and his daughter responded with a libel lawsuit in Portugal against British writer Oliver Bullough for the criticism covered in his 2018 book Moneyland: Why Thieves and Crooks Now Rule the World.