Zhangbei County (simplified Chinese: 张北县; traditional Chinese: 張北縣; pinyin: Zhāngběi Xiàn), in northwestern Hebei province, China, is a county formerly in the Chahar province.

Its name, which literally means "North of Zhang[jiakou]", derives from the fact that it is 40 km (25 mi) north-northeast of Zhangjiakou.

Zhangbei Town is the seat of the county government.

There are 4 towns and 14 townships under the county's administration.

This Zhangjiakou location article is a stub.