There are two electoral rolls in New Zeland. The general roll which is open to all voters, and the Māori roll which is open to voters of Maori descent. It is compulsory in New Zealand for all those eligible to be enrolled, however voting is optional.
View the Electoral Rolls
The rolls are made available to the public. They can be viewed in any office of the registrars of electors. A complete list is offices can be found here. Libraries also have the rolls available throughout the country.