The 1998 Heineken Open was a men's tennis tournament played on outdoor hard courts in Auckland, New Zealand, that was part of the World Series of the 1998 ATP Tour.

First-seeded Marcelo Ríos won the singles title.

Marcelo Ríos defeated Richard Fromberg, 4–6, 6–4, 7–6(7–3) Patrick Galbraith / Brett Steven defeated Tom Nijssen / Jeff Tarango, 6–4, 6–2

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