1999 Heineken Open

The 1999 Heineken Open was a men's ATP tennis tournament held in Auckland, New Zealand. It was the 32nd edition of the tournament and was held from 11 January to 18 January 1999 and was played on outdoor hard courts. Unseeded Sjeng Schalken won the singles title.

Singles
Sjeng Schalken defeated 🇩🇪 Tommy Haas 6–4, 6–4
 * It was Schalken's 1st title of the year and the 5th of his career.

Doubles
🇺🇸 Jeff Tarango / 🇨🇿 Daniel Vacek defeated 🇨🇿 Jiří Novák / 🇨🇿 David Rikl 7–5, 7–5
 * It was Tarango's 1st title of the year and the 9th of his career. It was Vacek's 1st title of the year and the 21st of his career.