Alfredo Ramos de Castilho (October 27, 1924 in Jacareí – July 31, 2012), was a Brazilian footballer in the defense role. He was simply known as Alfredo or Polvo by fans.
In his career as player for Santos (1947–1951), São Paulo (1951–1958 and 1961) and Corinthians (1958–1960), he played 633 games, scoring 3 goals, and won one São Paulo State Championship in 1953. With the Brazilian team, he was in the first team in 10 games and was listed in the roster for the 1954 FIFA World Cup, without playing any games. In the 1970s, he was coach for the São Paulo squad.