Ricardo Izecson dos Santos Leite, usually known as Kaká, (born April 22, 1982 in Brasilia) is a Brazilian football (soccer) player, who currently plays for A.C. Milan of the Italian Serie A.

Kaká joined Milan in 2003 from São Paulo FC. He was in Brazil's squad at the 2002 World Cup, but did not see much action as Brazil took the World Championship. Afterwards, he has really grown as a player and is currently considered one of the best Brazilian footballers.