The 1978 New Zealand Open, also known by its sponsored name Benson & Hedges New Zealand Open, was a men's professional tennis tournament held in Auckland, New Zealand. It was an independent event, i.e. not part of the 1978 Grand Prix circuit. The tournament was played on outdoor hard courts and was held from 2 January through 8 January 1978. Eliot Teltscher won the singles title.