New Zealand is a multi-island nation-state in the South Pacific on Earth. (This area is sometimes referred to as Oceania or Australasia.) Things originating from New Zealand are described as New Zealander. People from New Zealand are named New Zealander or New Zealandic or affectionately nicknamed "Kiwis".
Christchurch is the largest city on the South Island, one of New Zealand's main islands, while Wellington is the capital, located at the southern end of the North Island. Auckland is its most populous city, also located on the North Island.
Starfleet captains Noel Turner and Thekla Lawless were born and raised in New Zealand in the 20th and 23rd centuries respectively. (Star Trek: The Cantabrian Expeditions: "Catalyst, Part One", "The Fire In Which We Burn")