Cijin District (Chinese: 旗津區; Hanyu Pinyin: Qíjīn Qū; Tongyong Pinyin: Cíjin Cyu; Wade–Giles: Chʻi²-chin¹ Chʻü¹; Hokkien POJ: Kî-tin-khu) is a district of Kaohsiung City, Taiwan, covering Cijin Island (旗津島) and islands in the South China Sea. It is the second smallest district in Kaohsiung City after Yancheng District, with a area of 1.4639 square kilometers, or 0.5652 square miles. It has a population of 26,956 as of May 2022, making it the 26th most populated district in Kaohsiung, with a population density of 18,414 people per square kilometer, or 47,692 people per square mile.