| Competition: | Campeonato Carioca |
| Season: | 2010 |
| Winners: | Botafogo |
| Relegated: | Tigres do Brasil Friburguense |
| Continentalcup1: | Copa do Brasil |
| Continentalcup1 Qualifiers: | Botafogo Flamengo |
| Continentalcup2: | Série D |
| Continentalcup2 Qualifiers: | America Madureira |
| Matches: | 139 |
| Total Goals: | 425 |
| League Topscorer: | Vágner Love (Flamengo) - 15 goals |
| Best Player: | Jefferson (Botafogo) |
| Best Goalkeeper: | Jefferson (Botafogo) |
| Biggest Away Win: | Botafogo 0-6 Vasco da Gama (January 24, 2010) |
| Prevseason: | 2009 |
| Nextseason: | 2011 |
The 2010 edition of the Campeonato Carioca was the 109th edition of football of FFERJ (Federação de Futebol do Estado do Rio de Janeiro, or Rio de Janeiro State Football Federation). It began on January 16, 2010 and ended on April 28, 2010.
Sixteen teams contested the title. Cabofriense and Mesquita were relegated the previous year and were replaced by Olaria and America from the Carioca Série B.
| Club | City | Pos. in 2008 | Number of Titles (until 2009) | |
|---|---|---|---|---|
| Flamengo | Rio de Janeiro | Champions | 31 | |
| Botafogo | Rio de Janeiro | Runners-up | 18 | |
| Vasco da Gama | Rio de Janeiro | 3rd | 22 | |
| Fluminense | Rio de Janeiro | 4th | 30 | |
| Macaé | Macaé | 5th | - | |
| Bangu | Rio de Janeiro | 6th | 2 | |
| Friburguense | Nova Friburgo | 7th | - | |
| Boavista | Saquarema | 8th | - | |
| Resende | Resende | 9th | - | |
| Americano | Campos | 10th | - | |
| Tigres do Brasil | Rio de Janeiro | 11th | - | |
| Madureira | Rio de Janeiro | 12th | - | |
| Duque de Caxias | Duque de Caxias | 13th | - | |
| Volta Redonda | Volta Redonda | 14th | - | |
| Olaria | Rio de Janeiro | 2nd Level champions | - | |
| America | Mesquita | 2nd Level runners-up | 7 |
The 16 clubs were divided into two groups.
Group A: Americano, Bangu, Boavista, Duque de Caxias, Flamengo, Fluminense, Olaria, and Volta Redonda;
Group B: America, Botafogo, Friburguense, Macaé, Madureira, Resende, Tigres do Brasil, and Vasco da Gama.
The tournament was divided in two stages:
Per the rules of the Campeonato Carioca, for the purposes of relegation the standard tiebreaker criteria are not used. Since Duque de Caxias, Resende, and Friburguense all finished equal with 12 points in the relegation zone of the aggregate table, an additional double round-robin was played to determine relegation.