New Zealand women have the most sexual partners in the world, according to a global sex survey reported on Saturday.

They have an average of 20.4 sexual partners, according to a survey by condom-maker Durex - well above the global average of 7.3.

The Durex Sexual Wellbeing Global survey, which questioned 26,000 people in 26 countries, found that Austrians topped the male list with 29.3 sexual partners, more than twice the global average of 13.2.