2012 Campeonato Rondoniense
The 2012 Campeonato Rondoniense was the 18th season of Rondônia's top professional football league. The competition began 31 March and ended 9 June. Esporte Clube Espigão was the defending champion.Format
The eight clubs played a double round robin format. The best four teams advanced to the semifinals.Qualifications
The first stage champions qualified for Série D. The champion qualified for 2013 Copa do Brasil.Participating teams
| Club | Home city |
| Ariquemes | Ariquemes |
| Espigão | Espigão d'Oeste |
| Genus | Porto Velho |
| Moto Clube | Porto Velho |
| Rolim de Moura | Rolim de Moura |
| Ji-Paraná | Ji-Paraná |
| União Cacoalense | Cacoal |
| Vilhena | Vilhena |
Semifinals
Finals
Finals
Second leg
Ji-Paraná won 4-6 on aggregate
