Ewerton Machado Jaenisch (born 26 December 1957) is a Brazilian former footballer.
Ewerton has one kidney and does not have a spleen.
Ewerton started his career with Brazilian side Estrela FC. In 1979, he signed for Brazilian side Portuguesa. In 1986, he signed for Portuguese side MarÃÂtimo. He was regarded as one of the club's most important players.
After retiring from professional football, he lived in Lajeado, Brazil. He has owned an industrial automation equipment company.