The 1998 Rado Open was a men's tennis tournament played on 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 – 12 July 1998. This tournament is notable for being the first professional appearance of 20-time Grand Slam champion Roger Federer.
Seeds
Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.