Maria Elisa Guimarães Zanini (born September 23, 1958, in Rio de Janeiro) is a former international freestyle swimmer from Brazil, who participated in a Summer Olympics for her native country.

In the 800-metre freestyle, she finished 17th, with a time of 9:34.48, far from her personal best at this moment, the South American record (9:15.77).

[5] She was at the 1975 Pan American Games, in Mexico City, where she won the bronze medal in the 4×100-metre freestyle.

[9] At the 1976 Summer Olympics, in Montreal, she swam the 400-metre and 800-metre freestyle, not reaching the finals.

[12] She was the first woman from South America to break the one-minute barrier in the 100-metre freestyle.