Alfredo Carlos Botelho Machado (3 June 1953 – 25 September 2012) was an international freestyle swimmer from Brazil, who competed at one Summer Olympics for his native country.

[2] He began swimming for Fluminense and then moved to Flamengo.

[1] He was at the 1971 Pan American Games, in Cali, where he won a bronze medal in the 4×200-metre freestyle,[3] breaking the South American record.

[2] He broke the Brazilian record in the 1500-metre freestyle in Munich.

[8] At the 1973 Summer Universiade, in Moscow, Machado won a bronze medal in the 4×200-metre freestyle, along with José Namorado, James Huxley Adams and José Aranha.