Emmanuelle Gagliardi and Janette Husárová were the defending champions, but none competed this year.
| Women's doubles | |
|---|---|
| 2005 Estoril Open | |
| Champions |  Li Ting Sun Tiantian |
| Runners-up |  Michaëlla Krajicek Henrieta Nagyová |
| Score | 6–3, 6–1 |
Li Ting and Sun Tiantian won the title by defeating Michaëlla Krajicek and Henrieta Nagyová 6–3, 6–1 in the final.
Seeds edit
The top three seeds received a bye into the quarterfinals.
Yan Zi / Zheng Jie (quarterfinals)
Stéphanie Cohen-Aloro / 
Nicole Pratt (quarterfinals)- Li Ting / Sun Tiantian (champions)
Adriana Serra Zanetti / Antonella Serra Zanetti (quarterfinals)
Draw edit
Key edit
- 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
Draw edit
| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | Z Yan J Zheng
| 4 | 63 | ||||||||||||||||||||||||
 J Hewitt N Li
| 5 | 4 |  A Bondarenko K Bondarenko
| 6 | 77 | ||||||||||||||||||||||
| A Bondarenko K Bondarenko
| 7 | 6 | A Bondarenko K Bondarenko
| 0 | 6 | 2 | |||||||||||||||||||||
| 3 | T Li T Sun
| 6 | 2 | 6 | |||||||||||||||||||||||
| 3 | T Li T Sun
| 6 | 6 | ||||||||||||||||||||||||
 M Díaz Oliva G Dulko
| 6 | 7 | M Díaz Oliva G Dulko
| 4 | 4 | ||||||||||||||||||||||
 S Foretz C Schaul
| 4 | 5 | 3 | T Li T Sun
| 6 | 6 | |||||||||||||||||||||
 L Šafářová O Savchuk
| 3 | 1 | M Krajicek H Nagyová
| 3 | 1 | ||||||||||||||||||||||
| M Krajicek H Nagyová
| 6 | 6 | M Krajicek H Nagyová
| 77 | 6 | ||||||||||||||||||||||
 K Rodrigues T Wigan
| 1 | 0 | 4 |  Ad Serra Zanetti An Serra Zanetti
| 63 | 2 | |||||||||||||||||||||
| 4 | Ad Serra Zanetti An Serra Zanetti
| 6 | 6 | M Krajicek H Nagyová
| 7 | 4 | 6 | ||||||||||||||||||||
C Ferreira M Gloria
| 2 | 4 |  M Müller L Osterloh
| 5 | 6 | 1 | |||||||||||||||||||||
| M Müller L Osterloh
| 6 | 6 | M Müller L Osterloh
| 6 | 4 | 6 | |||||||||||||||||||||
| 2 | S Cohen-Aloro N Pratt
| 4 | 6 | 2 | |||||||||||||||||||||||