The 2013 season was Club de Regatas Vasco da Gama's 115th year in existence, the club's 98th season in existence of football, and the club's 42nd season playing in the Brasileirão Série A, the top flight of Brazilian football.
The club could not play in the Copa Sudamericana due to fixture conflicts with the Copa do Brasil.
Vasco da Gama's only preseason friendly in 2013 was against Ajax. The friendly was the last match of Pedrinho, one of Vasco da Gama's revered players.
Players in italics have left the club during the season.
|- |colspan="14"|Youth academy's players who participated during the season: (Statistics shown are the appearances made and goals scored while at Vasco da Gama first squad)
|- |colspan="14"|Players who left the club during the season: (Statistics shown are the appearances made and goals scored while at Vasco da Gama)