Aldair, full name Aldair Santos do Nascimento (born November 11, 1965 in Ilhéus, Brazil) was a famous football (soccer) defender. He was part of the Brazilian national team that won the 1994 World Cup.

Aldair started playing at Flamengo where he won his most important title in Brazil, the Brazilian championship. In 1994, he got his best moment in life when playing by the side of Romário, Bebeto and others at the World Cup in the USA. He also played in the 1998 edition. Aldair became the champion of that World Cup.

Aldair made a move to Europe in 1989, playing with Benfica. He moved to AS Roma next year and stayed there until 2004, when he finished out his career with Genoa.