Flávio Rodrigues da Costa (14 September 1906 – 22 November 1999) was a Brazilian football player and manager. He managed the Rio de Janeiro clubs Vasco da Gama and Flamengo, as well as Colo Colo of Chile, and FC Porto of Portugal.

Costa coached the Brazilian squad at the 1950 FIFA World Cup; the loss against Uruguay has been described as Brazil's greatest humiliation of the 20th century.^[1][2] As a consequence of his World Cup failure, he lost his prestige among the Brazilian press and supporters of the national team. However, he was again manager of the Brazilian team in 1955 and in 1956.

He died in Rio de Janeiro in November 1999.

From 1926 until 1936, Costa played 145 matches, mostly as a midfielder, in the black and red jerseys of Flamengo and scored 15 goals in the process. From September 1934 forward he was player-manager.

The climax of his playing career was the winning of the state championship of Rio de Janeiro in 1927.