João Reynaldo Costa Lima Neto (born May 17, 1947 in Pernambuco), known as Nikita, is a former international butterfly swimmer from Brazil.

[1] At the 1967 Pan American Games, in Winnipeg, he won a bronze medal in the 4×100-metre medley.

[2] At the 1968 Summer Olympics, in Mexico City, he swam the 100-metre butterfly and the 4×100-metre medley, not reaching the finals.

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