| 1985 Benson and Hedges Open | |
|---|---|
| Date | 7–14 January |
| Edition | 18th |
| Category | Grand Prix |
| Draw | 32S / 16D |
| Prize money | $80,000 |
| Surface | Hard / outdoor |
| Location | Auckland, New Zealand |
| Champions | |
| Singles | |
 Chris Lewis[1] | |
| Doubles | |
 John Fitzgerald / Chris Lewis[2] | |
The 1985 Benson and Hedges Open was a men's Grand Prix tennis tournament played on outdoor hard courts in Auckland, New Zealand. It was the 18th edition of the tournament and was held from 7 January to 14 January 1985. Seventh-seeded Chris Lewis won the singles title.
Chris Lewis defeated Wally Masur 7–5, 6–0, 2–6, 6–4
John Fitzgerald / Chris Lewis defeated Broderick Dyke / Wally Masur 7–6, 6–2
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