The 1998 SEAT Open was a women's tennis tournament played on indoor carpet courts in Kockelscheuer, Luxembourg that was part of Tier III of the 1998 WTA Tour. It was the third edition of the tournament and was held from 26 October until 31 October 1998. Second-seeded Mary Pierce won the singles title and earned $27,000 first-prize money.
Mary Pierce defeated Silvia Farina 6âÂÂ0, 2âÂÂ0 ret.
Elena Likhovtseva / Ai Sugiyama defeated Larisa Neiland / Elena Tatarkova 6âÂÂ7<sup>(3âÂÂ7)</sup>, 6âÂÂ3, 2âÂÂ0 (Neiland and Tatarkova retired)