Campeonato Carioca Série B2

The Campeonato Carioca Série B2 is the football fourth level of the First Division annual competition among clubs in the state of Rio de Janeiro, Brazil.

The current version from 2021 of Campeonato Carioca Série B2 is the fourth-highest level. The previous version of the tournament was implemented in 2017 as the third-highest level, replacing the old Série C, which became the state's fourth division.

List of champions
Following is the list with all the champions of the fourth level of Rio de Janeiro and their different nomenclatures over the years.

Titles by team
Teams in bold stills active.