Moacir Barbosa Nascimento (27 March 1921 – 7 April 2000) was a Brazilian professional football goalkeeper whose career spanned 22 years.
He was regarded as one of the world's best goalkeepers in the 1940s and 1950s, and known for not wearing gloves, as would be typical.
Nowadays he is mainly associated with Brazil's defeat against underdogs Uruguay in the decisive match of the 1950 FIFA World Cup, an upset dubbed the Maracanazo.