| 2005 Open 13 | |
|---|---|
| Date | 7–14 February |
| Edition | 13th |
| Category | International Series |
| Draw | 32S / 16D |
| Prize money | $575,000 |
| Surface | Hard / indoor |
| Location | Marseille, France |
| Champions | |
| Singles | |
 Joachim Johansson[1] | |
| Doubles | |
 Martin Damm / Radek Štěpánek[2] | |
The 2005 Open 13 was an ATP men's tennis tournament played on indoor hard courts in Marseille, France that was part of the 2005 ATP Tour. It was the 13th edition of the tournament and was held from February 7 to February 14. Third-seeded Joachim Johansson won the singles title.
- ^ "2005 Marseille – Singles draw". Association of Tennis Professionals (ATP).
- ^ "2005 Marseille – Doubles draw". Association of Tennis Professionals (ATP).