This is a list of former territorial authorities in New Zealand. "Territorial authority" is the generic term used for local government entities in New Zealand. Local government has gone through three principal phases with different structures: the provincial era, from 1853 to 1876; the counties and boroughs system from 1876 until 1989; and the current system of regions, cities and districts.
This article attempts to list all territorial authorities which have been disestablished.