2006 Estoril Open – Women's singles
| Women's singles | |
|---|---|
| 2006 Estoril Open | |
| Champion | Zheng Jie |
| Runner-up | Li Na |
| Score | 6–7(5–7), 7–5, retired |
Lucie Šafářová was the defending champion, but did not compete this year.
Zheng Jie won the title with the score tied at 1 set all, after her opponent Li Na was forced to retire due to a heat illness. It was the first title of the year for Zheng and the second title in her career.