Territorial authorities of New Zealand

This term covers the non-overlapping city councils and district councils that control local affairs in New Zealand's three main islands and a few of the nearby islands.

Facilities of genealogical interest, such as libraries and cemeteries, are mostly controlled by territorial authorities unless they are part of central government (eg census, Archives New Zealand, and BDM registration) or church-related.

Most of the territories are each within the territory of a single regional council, but there are a few divergences where catchments (the main basis of regional boundaries) do not match communities of interest. A handful of territorial authorities ("unitary authorities") are not in regions at all, being given regional powers of their own.