Sylvio Kelly dos Santos (15 July 1935 – 4 November 2016) was a Brazilian sportsman.

He represented Brazil in swimming at the 1952 and 1956 Olympics and in water polo at the 1959 Pan American Games.

[1][2] He was brother of Márvio dos Santos, who participated at three Summer Olympics in Water Polo.

[1] At the 1959 Pan American Games in Chicago, he won the bronze medal in the Water Polo.

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