| 1998 International Raiffeisen Grand Prix | |
|---|---|
| Date | 18–24 May |
| Edition | 18th |
| Category | International Series |
| Surface | Clay / outdoor |
| Location | St. Pölten, Austria |
| Champions | |
| Singles | |
 Marcelo Ríos[1] | |
| Doubles | |
 Jim Grabb / David Macpherson[1] | |
The1998 International Raiffeisen Grand Prix was a men'stennis tournament played onClay inSt. Pölten, Austria that was part of theInternational Series of the1998 ATP Tour. It was the eighteenth edition of the tournament and was held from 18 May until 24 May 1998. First-seededMarcelo Ríos won the singles title.
Marcelo Ríos defeatedVincent Spadea, 6–2, 6–0.[1]
Jim Grabb /David Macpherson defeated
David Adams /
Wayne Black, 6–4, 6–4.[1]