1989 Estoril Open
 |
| 1989 Estoril Open | |
|---|---|
| Date | 17 – 23 July |
| Edition | 1st |
| Category | Tier V |
| Surface | Clay |
| Location | Estoril, Portugal |
| Venue | Estoril Court Central |
| Champions | |
| Singles | |
 Isabel Cueto | |
| Doubles | |
 Iva Budařová / Regina Rajchrtová | |
The 1989 Estoril Open was a women's tennis tournament played on outdoor clay courts at the Estoril Court Central in Estoril in Portugal that was part of Tier V of the 1989 WTA Tour. The tournament was held from 17 July through 23 July 1989.
Winners
Women's Singles
Isabel Cueto defeated 
Sandra Cecchini 7–6, 6–2
- It was Cueto's 1st title of the year and the 4th of her career.
Women's Doubles
Iva Budařová / Regina Rajchrtová defeated 
Gabriela Castro / 
Conchita Martínez 6–2, 6–4
- It was Budařová's only title of the year and the 4th of her career. It was Rajchrtová's only title of the year and the 1st of her career.
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