Qishuyan District (simplified Chinese: 戚墅堰区; traditional Chinese: 戚墅堰區; pinyin: Qīshùyàn Qū) is one of five districts under the jurisdiction of Changzhou in Jiangsu province of the People's Republic of China. The local language is the Changzhou dialect of Wu Chinese. The postal code for the district is 213011. It covers an area of 31.58 square kilometers. In 2005 the total population was recorded at 80,200 people. It is also home to Tianmu Lake after which a local beer is named. On May 7, 2015, Qishuyan District was merged with Wujin District.