|Country||Rio de Janeiro, Brazil|
|Number of teams||21|
|Promotion to||Campeonato Carioca|
|Relegation to||Campeonato Carioca Série B2|
|TV partners||Rede Record|
|Current: 2018 Campeonato Carioca Série B1|
The Campeonato Carioca Série B1 is the football second level of the First Division annual competition among clubs in the state of Rio de Janeiro, Brazil. Usually, the champion of the level is promoted in the next season to the Campeonato Carioca. It is under the authority of the FERJ or FFERJ (Football Federation of the State of Rio de Janeiro).