Eduardo Beca Piccinini (born 30 November 1968) is a former international butterfly swimmer from Brazil. He currently resides in Arizona, in United States, and his name illustrates the Amazon Swimming Cup. He was at the 1991 Pan American Games in Havana, where he earned a bronze medal in the 100-metre butterfly. At the 1992 Summer Olympics in Barcelona, Piccinini finished 18th in the 100-metre butterfly, and 15th in the 200-metre butterfly. Piccinini was at the 1994 World Aquatics Championships, in Rome, where he finished 25th in the 100-metre butterfly, and 26th in the 200-metre butterfly.