The 1985 Hewlett-Packard Trophy was a women's tennis tournament played on indoor carpet courts in Hilversum, Netherlands.

It was part of the 1985 Virginia Slims World Championship Series and was played from 4 November until 10 November 1985.

Unseeded Katerina Maleeva won the singles title.

[1] Katerina Maleeva defeated Carina Karlsson 6–3, 6–2 Marcella Mesker / Catherine Tanvier defeated Sandra Cecchini / Sabrina Goleš 6–2, 6–2