The 1998 Piberstein Styrian Open was a women's tennis tournament played on outdoor clay courts at the Sportpark Piberstein in Maria Lankowitz, Austria that was part of Tier IV of the 1998 WTA Tour.

It was the 26th edition of the tournament and was held from 6 July until 12 July 1998.

First-seeded Patty Schnyder won the singles title.

Patty Schnyder defeated Gala León García 6–2, 4–6, 6–3 Laura Montalvo / Paola Suárez defeated Tina Križan / Katarina Srebotnik 6–1, 6–2