| Competition: | Terceira Divisão |
| Season: | 2004–05 |
| Prevseason: | 2003–04 |
| Nextseason: | 2005–06 |
The 2004–05 Terceira Divisão season was the 55th season of the competition and the 15th season of recognised fourth-tier football in Portugal.[1]
The league was contested by 118 teams in 7 divisions of 10 to 18 teams.[1]
The last Açores team in the Segunda Divisão competed against the Açores champions of the Terceira Divisão.
| style= width="60px" | Tie no | style= width="150px" | Home team | style= width="60px" | Score | style= width="150px" | Away team |
|---|---|---|---|---|---|---|---|
| 1st leg | FC Madalena | 2–1 | SC Lusitânia | ||||
| 2nd leg | SC Lusitânia | 1–0 (4-5 pens) |
Madalena were promoted to the Segunda Divisão and Lusitânia relegated to the Terceira Divisão.