| Competition: | Cypriot Third Division |
| Season: | 2004–05 |
| Winners: | SEK (2nd title) |
| Promoted: | SEK Elpida Iraklis G. |
| Relegated: | Othellos Orfeas AEK/Achilleas |
| Matches: | 182 |
| Total Goals: | 630 |
| Prevseason: | 2003–04 |
| Nextseason: | 2005–06 |
The 2004–05 Cypriot Third Division was the 34th season of the Cypriot third-level football league. SEK Agiou Athanasiou won their 2nd title.
Fourteen teams participated in the 2004–05 Cypriot Third Division. All teams played against each other twice, once at their home and once away. The team with the most points at the end of the season crowned champions. The first three teams were promoted to the 2005–06 Cypriot Second Division and the last three teams were relegated to the 2005–06 Cypriot Fourth Division.
Teams received three points for a win, one point for a draw and zero points for a loss.
Teams promoted to 2004–05 Cypriot Second Division
Teams relegated from 2003–04 Cypriot Second Division
Teams promoted from 2003–04 Cypriot Fourth Division
Teams relegated to 2004–05 Cypriot Fourth Division