# 2005 Open Gaz de France – Singles

Kim Clijsters was the defending champion but did not compete that year.
Dinara Safina won in the final 6–4, 2–6, 6–3 against Amélie Mauresmo.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. The top four seeds received a bye to the second round.
* Serena Williams (quarterfinals)
* Amélie Mauresmo (final)
* Maria Sharapova (withdrew)
* Nadia Petrova (semifinals)
* Nathalie Dechy (second round)
* Karolina Šprem (first round)
* Silvia Farina Elia (quarterfinals)
* Magdalena Maleeva (quarterfinals)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Final

| Final | Final | Final | Final | Final |
| | Dinara Safina | 6 | 2 | 6 |
| 2 | Amélie Mauresmo | 4 | 6 | 3 |

### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | S Williams | 6 | 6 | | | | | | | | |
| | M E Camerin | 6$^5$ | 1 | | WC | S Cohen-Aloro | 3 | 2 | | | | | | | | |
| WC | S Cohen-Aloro | 7$^7$ | 6 | | | | | | 1 | S Williams | | | | | | |
| Q | V Douchevina | 6 | 2 | 6 | | | | | | D Safina | w/o | | | | | |
| | I Benešová | 4 | 6 | 3 | Q | V Douchevina | 2 | 4 | | | | | | | | |
| | D Safina | 6 | 6 | | | D Safina | 6 | 6 | | | | | | | | |
| 6 | K Šprem | 4 | 2 | | | | | | | | | | D Safina | 6 | 4 | 7$^7$ |
| | | | | | | | | | | | | | T Golovin | 1 | 6 | 6$^2$ |
| | | | | | LL | S Mamić | 3 | 4 | | | | | | | | |
| | T Golovin | 6 | 7$^9$ | | | T Golovin | 6 | 6 | | | | | | | | |
| Q | S Beltrame | 2 | 6$^7$ | | | | | | | T Golovin | 6 | | | | | |
| WC | V Razzano | 6 | 6 | | | | | | 7 | S Farina Elia | 0 | r | | | | |
| | A Smashnova | 2 | 3 | | WC | V Razzano | 4 | 1 | | | | | | | | |
| | K Koukalová | 0 | 0 | | 7 | S Farina Elia | 6 | 6 | | | | | | | | |
| 7 | S Farina Elia | 6 | 6 | | | | | | | | | | | | | |

### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | N Dechy | 7 | 7$^7$ | | | | | | | | | | | | | | |
| | J Kostanić | 5 | 6$^4$ | | 5 | N Dechy | 4 | 2 | | | | | | | | | |
| | E Daniilidou | 3 | 0 | r | | M Bartoli | 6 | 6 | | | | | | | | | |
| | M Bartoli | 6 | 2 | | | | | | | M Bartoli | 6 | 1 | 5 | | | | |
| | F Pennetta | 6$^1$ | 4 | | | | | | 4 | N Petrova | 2 | 6 | 7 | | | | |
| Q | S Sfar | 7$^7$ | 6 | | Q | S Sfar | 3 | 3 | | | | | | | | | |
| | | | | | 4 | N Petrova | 6 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | 4 | N Petrova | 5 | 3 |
| 8 | M Maleeva | 7$^7$ | 7$^{11}$ | | | | | | | | | | | 2 | A Mauresmo | 7 | 6 |
| Q | C Schaul | 6$^4$ | 6$^9$ | | 8 | M Maleeva | 6 | 6 | | | | | | | | | |
| | É Loit | 4 | 6 | 3 | | J Janković | 4 | 0 | | | | | | | | | |
| | J Janković | 6 | 4 | 6 | | | | | 8 | M Maleeva | 2 | 6$^2$ | | | | | |
| | M Pierce | 6 | 6 | | | | | | 2 | A Mauresmo | 6 | 7$^7$ | | | | | |
| | A Medina Garrigues | 1 | 2 | | | M Pierce | 4 | 3 | | | | | | | | | |
| | | | | | 2 | A Mauresmo | 6 | 6 | | | | | | | | | |