| 1999 SEAT Open Luxembourg | |
|---|---|
| Date | 20–26 September |
| Edition | 4th |
| Category | Tier III |
| Draw | 30S / 16D |
| Prize money | $180,000 |
| Surface | Carpet / indoor |
| Venue | Kockelscheuer, Luxembourg |
| Champions | |
| Singles | |
 Kim Clijsters | |
| Doubles | |
 Irina Spîrlea /  Caroline Vis | |
The 1999 SEAT Open was a women's tennis tournament played on indoor carpet courts in Kockelscheuer, Luxembourg which was part of Tier III of the 1999 WTA Tour.[1] It was the fourth edition of the tournament and was held from 20 September until 26 September 1999. Qualifier Kim Clijsters won the singles title and earned $27,000 first-prize money.
- ^ "Luxembourg". Tennistonic. 1999. Archived from the original on 2014-12-04. Retrieved 30 November 2014.