| Competition: | Tercera División |
| Season: | 2004–05 |
| Dates: | August 2004–June 2005 |
| Matches: | 12920 |
The 2004–05 Tercera División was the fourth division in Spanish football.
See also: 2005 Tercera División play-offs.
| Key to colors in league table: | |
| Play-off for promotion | |
| Direct relegation |