Jiading District (simplified Chinese: 嘉定区; traditional Chinese: 嘉定區; pinyin: Jiādìng Qū) is one of the 18 districts of Shanghai, People's Republic of China. It has a population of 1,471,100 (as of 2010).

Jiading District is located in the northwestern part of Shanghai . It stretches across 463,9 km². It is located about 20 km away from downtown Shanghai. It is connected to downtown by the Hujia expressway, which was the first expressway in Shanghai. The Jiading district is at least 20 minutes drive away from Shanghai International Hongqiao Airport.