The 1989 European Open was a women's tennis tournament played on outdoor clay courts at the Drizia-Miremont Tennis Club in Geneva, Switzerland that was part of the Category 2 tier of the 1989 WTA Tour. The tournament was held from 22 May until 28 May 1989. Third-seeded Manuela Maleeva won the singles title.
|1989 European Open|
|Date||22 – 28 May|
|Draw||32S / 16D|
|Surface||Clay / outdoor|
|Venue||Drizia-Miremont Tennis Club|
|Katrina Adams / Lori McNeil|
- It was Maleeva's 2nd title of the year and the 14th of her career.
- It was Adams' 4th title of the year and the 8th of her career. It was McNeil's 2nd title of the year and the 20th of her career.