Rolf Egon Kestener (8 July 1930 – 8 October 1998) was a former international freestyle swimmer from Brazil who participated in a Summer Olympics for his native country.

[2] His son, Cláudio Kestener, participated in the 1980 Summer Olympics, in Moscow.

[4] At the 1948 Summer Olympics, in London, he finished 8th in the 4×200-metre freestyle final, along with Aram Boghossian, Willy Otto Jordan and Sérgio Rodrigues.

[6] At the 1955 Pan American Games in Mexico City, he won the bronze medal in the Water Polo.

[7][8][9] He broke two times the Brazilian record in the 1500-metre freestyle, both in London at the 1948 Summer Olympics.