希安热为安哥拉威拉省的一个城镇及市辖区，为奈米贝铁路支线的终点，于栋戈处连接主线。北与希比亚及基蓬戈相接，东与马特拉相邻，南接卡哈马及Curoca，西与维雷相接。

Chiange is a town and commune in the municipality of Gambos, province of Huíla, Angola.

It is also the seat of the municipality of Gambos.

Chiange covers 8,150 square kilometres (3,150 sq mi) and as of 2011 had a population of 151,375. It is terminus of a branch of the Moçâmedes Railway, which is the southernmost of the three railway networks in Angola, junctioning at Dongo.