The 1998 Dutch Open was an Association of Tennis Professionals men's tennis tournament held on outdoor clay courts in Amsterdam, Netherlands. It was the 41st edition of the tournament and was held from 3 August until 9 August 1998. Unseeded Magnus Norman won his first title of the year, and the second of his career.
See main article: 1998 Dutch Open – Singles. 
Magnus Norman defeated 
Richard Fromberg, 6–3, 6–3, 2–6, 6–4
See main article: 1998 Dutch Open – Doubles. Jacco Eltingh / Paul Haarhuis defeated 
Dominik Hrbatý / Karol Kučera, 6–3, 6–2