「区市」（Districts and Cities），是新西兰的二级行政区划，由「区域当局」（Territorial Authority）管辖。现今新西兰共有67个区域当局，包括13个市议会、53个区议会、及查塔姆群岛议会。其中6个区域当局（奥克兰议会、吉斯伯恩区议会、塔斯曼区议会、纳尔逊市议会、马尔伯勒区议会、及查塔姆群岛议会）除了本身的职权外，同时也具有「地方议会」（Regional Council，新西兰的一级行政区划）的功能，因此亦称为「单一管理区当局」（Unitary Authority）。新西兰域外领土是不在地方政府管辖范围内的离岛，包括克马德克群岛、三王群岛及亚南极群岛，直接由中央政府的环境保护部管辖。

Territorial authorities are the second tier of local government in New Zealand, below regional councils. There are 67 territorial authorities: 12 city councils, 53 district councils, Auckland Council and Chatham Islands Council. Six territorial authorities (Auckland Council, Nelson City Council, the Gisborne, Tasman, and Marlborough district councils and Chatham Islands Council) also perform the functions of a regional council and thus are unitary authorities. A unitary authority may also have local boards; currently only Auckland Council has them.