Jose Thiago Mangini (4 January 1920 – 10 February 1984) was a Brazilian chess player.
In the 1950s, Mangini was one of the leading Brazilian chess players.
He participated in many Brazilian Chess Championships where he won two gold (1950, 1956) and a silver (1951) medals.
[1] In 1951 and 1957, he represented Brazil in the World Chess Championship South America Zonal tournaments.
Mangini participated in several major international chess tournaments which took place in Brazil.