Li Ting and Sun Tiantian were the defending champions and successfully defended their title, by defeating Gisela Dulko and María Sánchez Lorenzo 6–2, 6–2 in the final.
| Women's doubles | |
|---|---|
| 2006 Estoril Open | |
| Champions |  Li Ting Sun Tiantian |
| Runners-up |  Gisela Dulko María Sánchez Lorenzo |
| Score | 6–2, 6–2 |
It was the 9th title for Li and the 8th title for Sun in their respective doubles careers. It was also the 2nd title for the pair during the season, after their win in Pattaya City.
Seeds edit
Yan Zi / Zheng Jie (quarterfinals)- Li Ting / Sun Tiantian (champions)
Lourdes Domínguez Lino / 
Émilie Loit (first round)
Eleni Daniilidou / 
Jasmin Wöhr (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
| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | Z Yan J Zheng
| 6 | 6 | ||||||||||||||||||||||||
| WC |  A C Nogueira N Silva
| 3 | 3 | 1 | Z Yan J Zheng
| 2 | 1 | ||||||||||||||||||||
 V Dushevina V Razzano
| 6 | 4 | 2 | G Dulko M Sánchez Lorenzo
| 6 | 6 | |||||||||||||||||||||
| G Dulko M Sánchez Lorenzo
| 4 | 6 | 6 | G Dulko M Sánchez Lorenzo
| w/o | ||||||||||||||||||||||
| 3 | L Domínguez Lino E Loit
| 2 | 6 | 4 |  S Klösel A Rodionova
| ||||||||||||||||||||||
| S Klösel A Rodionova
| 6 | 4 | 6 | S Klösel A Rodionova
| 6 | 3 | 6 | ||||||||||||||||||||
C Martínez Granados M Vento-Kabchi
| 77 | 6 | C Martínez Granados M Vento-Kabchi
| 2 | 6 | 4 | |||||||||||||||||||||
 B Mattek B Stewart
| 64 | 3 | G Dulko M Sánchez Lorenzo
| 2 | 2 | ||||||||||||||||||||||
| Q | N Uberoi S Uberoi
| 4 | 6 | 7 | 2 | T Li T Sun
| 6 | 6 | |||||||||||||||||||
 N Grandin B Schwartz
| 6 | 2 | 5 | Q | N Uberoi S Uberoi
| 4 | 6 | 6 | |||||||||||||||||||
MJ Argeri L Sobral
| 2 | 1 | 4 |  E Daniilidou J Wöhr
| 6 | 4 | 2 | ||||||||||||||||||||
| 4 | E Daniilidou J Wöhr
| 6 | 6 | Q | N Uberoi S Uberoi
| 6 | 2 | 1 | |||||||||||||||||||
 Y Beygelzimer E Birnerová
| 3 | 3 | 2 | T Li T Sun
| 4 | 6 | 6 | ||||||||||||||||||||
S Foretz An Serra Zanetti
| 6 | 6 | S Foretz An Serra Zanetti
| 7 | 2 | 5 | |||||||||||||||||||||
| A Parra Santonja ME Salerni
| 3 | 2 | 2 | T Li T Sun
| 5 | 6 | 7 | ||||||||||||||||||||
| 2 | T Li T Sun
| 6 | 6 | ||||||||||||||||||||||||