The 1998 Rado Open was a men's tennis tournament played on outdoor Clay in Gstaad, Switzerland that was part of the International Series of the 1998 ATP Tour. It was the thirty-first edition of the tournament and was held from 6 July until 12 July 1998. Third-seeded Àlex Corretja won the singles title.
This tournament is also notably the first one of its kind to feature 20-time major winner and arguably the greatest to ever do it, Roger Federer. The 16-year old, who had just come of a title in the Boys Singles of Wimbledon, was knocked out in the first round.
See main article: 1998 Rado Open – Singles. 
Àlex Corretja defeated 
Boris Becker, 7–6(7–5), 7–5, 6–3
See main article: 1998 Rado Open – Doubles. 
Gustavo Kuerten / Fernando Meligeni defeated 
Daniel Orsanic / 
Cyril Suk, 6–4, 7–5