The 2013 Campeonato Carioca was the 112th edition of the top tier of the Campeonato Carioca, organized by FFERJ (Federação de Futebol do Estado do Rio de Janeiro, or Rio de Janeiro State Football Federation). The competition began on 19 January and ended on 5 May. Botafogo won.
The sixteen clubs were divided into two groups that played in two phases. In the first phase, the Taça Guanabara, each team played every team from the other group once. The two best teams from each group advanced to the Taça Guanabara playoffs. In the second phase, the Taça Rio, the teams from each group played within their group in a single round-robin format. The two best teams from each group advanced to the Taça Rio playoffs. The winners of the Taça Guanabara and the Taça Rio played for the state championship. If the same team won both phases, they were automatically declared the Campeonato Carioca champion.
The top four teams not otherwise qualified through national and international tournaments qualified for the 2014 Copa do Brasil. The highest-placed team not otherwise playing in the Campeonato Brasileiro Série A, Série B or Série C qualified for the 2013 Campeonato Brasileiro Série D.
The 2013 Taça Guanabara began on 19th January and ended on 10th March.
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The 2013 Taça Rio began on 17th March and ended on 5th May.
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The Torneio Super Clássicos concerned all regular games between the four "big" clubs: Botafogo, Flamengo, Fluminense and Vasco da Gama.