1998 Heineken Trophy
Date	15–21 June
Edition	9th (men) / 3rd (women)
Surface	Grass / outdoor
Location	Rosmalen, 's-Hertogenbosch, Netherlands
Champions
Men's singles
Patrick Rafter[1]
Women's singles
Julie Halard-Decugis
Men's doubles
Guillaume Raoux / Jan Siemerink[2]
Women's doubles
Sabine Appelmans / Miriam Oremans
← 1997 · Heineken Trophy · 1999 →

The 1998 Heineken Trophy was a tennis tournament played on grass courts in Rosmalen, 's-Hertogenbosch in the Netherlands that was part of the International Series of the 1998 ATP Tour and of Tier III of the 1998 WTA Tour. The tournament was held from 15 June through 21 June 1998. Patrick Rafter and Julie Halard-Decugis won the singles titles.

Finals

Men's singles

Patrick Rafter defeated Martin Damm 7–6^(7–2), 6–2

• It was Rafter's 3rd title of the year and the 10th of his career.

Women's singles

Julie Halard-Decugis defeated Miriam Oremans 6–3, 6–4

• It was Halard-Decugis' 2nd title of the year and the 11th of her career.

Men's doubles

Guillaume Raoux / Jan Siemerink defeated Joshua Eagle / Andrew Florent 7–6^(7–5), 6–2

• It was Raoux's only title of the year and the 5th of his career. It was Siemerink's 2nd title of the year and the 12th of his career.

Women's doubles

Sabine Appelmans / Miriam Oremans defeated Cătălina Cristea / Eva Melicharová 6–7^(4–7), 7–6^(8–6), 7–6^(7–5)

• It was Appelmans' 2nd title of the year and the 10th of her career. It was Oremans' 2nd title of the year and the 3rd of her career.