Ganzhou , formerly romanized as Kanchow, is a prefecture-level city in southern Jiangxi, China, bordering Fujian to the east, Guangdong to the south, and Hunan to the west. Its administrative seat is at Zhanggong District. Its population was 8,361,447 at the 2010 census whom 1,977,253 in the built-up (or "metro") area made of Zhanggong and Nankan urban Districts and Gan County largely being urbanized.

The Ganzhou District (甘州区) is one of 58 County-level divisions of Gansu Province. It is the seat of the Municipal region of Zhangye (张掖), whose executive, legislature and judiciary are here, together with the CPC and Public Security bureaux.