Mazinho, Brazilian footballer, coach, and manager
Iomar do Nascimento (born 8 April 1966), known as Mazinho, is a Brazilian football manager and former player. Mazinho played primarily as a defensive-minded midfielder and a full-back in his professional playing career. As a manager, he had a short spell at Greek club Aris in 2009.

A former central midfielder, Mazinho played 35 internationals for Brazil national team, winning the 1989 Copa América, 1994 FIFA World Cup and the silver medal at the 1988 Olympics. He was also named in the squads for the 1990 World Cup and 1991 Copa América.