The 1989 Belgian Open was a women's tennis tournament played on outdoor clay courts in Brussels, Belgium that was part of the Category 2 tier of the 1989 WTA Tour. It was the third edition of the tournament and was held from 17 July until 23 July 1989. Second-seeded Radka Zrubáková won the singles title.
Radka Zrubáková defeated Mercedes Paz 7âÂÂ6<sup>(8âÂÂ6)</sup>, 6âÂÂ4
Manon Bollegraf / Mercedes Paz defeated Carin Bakkum / Simone Schilder 6âÂÂ1, 6âÂÂ2