2005 Campeonato Catarinense
The 80th season of the Campeonato Catarinense began on January 23, 2005, and ended on April 17, 2005.
Format
Série A1First stage
- Teams are divided into two groups of six teams.
- Double round-robin, in which all teams from one group play home-and-away games against all teams within the group.
- Top 4 teams from each group of first stage are divided into two groups of four teams.
- Double round-robin, in which all teams from one group play home-and-away games against all teams within the group.
- Home-and-away playoffs with the top 2 teams of each group.
The teams that do not participate in Brazilian Série A and Brazilian Série B will participate in Série A2.
First stage
;Group A;Group B
Second stage
;Group C;Group D
Third stage
Semi-finals
- The first games were played in Team 1 Stadium
Italic: Teams qualify to Final
Final
Source:| champion | Result | runner-up | Game 1* | Game 2 |
| Criciúma | 2-1 | Atlético de Ibirama | 1-1 | 1-0 |
| - | - | - | - |
- The Game 2 was played in Ibirama, because the Clube Atlético Hermann Aichinger had better Punctuation in the two stages.
Final standings
- Atlético de Ibirama qualify to Série C, because Criciúma already was qualify to Serie B.
Other Divisions
Série A2: 12 Teams- Champion: Joinville
- Runner-up: Marcílio Dias - Qualify to Campeonato Brasileiro Série C 2005*
- Marcílio Dias qualify to Série C, because Joinville already was qualify to Serie C
- Champion: Próspera - Qualify to Divisão Especial 2006*
- Runner-up: Figueirense B - The team was disactivate
- Third Place: Cidade Azul - Qualify to Divisão Especial 2006*
- The Serie A2 transformed in 2006 in Divisão Especial and Série B1 in Divisão de Accesso