The 1975 New Zealand Open, also known as Benson and Hedges Open for sponsorship reasons, was a professional men's tennis tournament held in Auckland, New Zealand.

It was an independent event, i.e. not part of the 1975 Grand Prix or 1975 World Championship Tennis circuit.

It was the eighth edition of the tournament and was played on outdoor grass courts from 6 January through 12 January 1975.

First-seeded Onny Parun won the singles title.

[3][4] Onny Parun defeated Brian Fairlie 4–6, 6–4, 6–4, 6–7, 6–4 Bob Carmichael / Ray Ruffels defeated Brian Fairlie / Onny Parun 7–6, RET [a]