| Cianjhen | |
| Official Name: | Cianjhen District |
| Native Name Lang: | zh-hant |
| Other Name: | Qianzhen |
| Settlement Type: | District |
| Image Blank Emblem: | File:前鎮_Cianjhen_高雄市前鎮區公所_Cianjhen_District_Office,_Kaohsiung_City.png |
| Blank Emblem Type: | Chinese: 前鎭 Cianjhen |
| Subdivision Type: | Country |
| Subdivision Name: | Taiwan |
| Subdivision Type1: | City |
| Subdivision Name1: | Kaohsiung |
| Parts Type: | Divisions |
| Population Total: | 180097 |
| Population As Of: | October 2023 |
| Population Density Km2: | auto |
| Postal Code Type: | Postal code |
Cianjhen District is a district in Kaohsiung City, Taiwan. It covers an area of and is subdivided into 59 villages. The district has a population is 180,097, as of October 2023. It is the fifth-most populated district in Kaohsiung, with a population density of 9,457 people per square kilometer, or 24,494 people per square mile.
On July 31, 2014, the 2014 Kaohsiung gas explosions occurred in the district and in nearby Lingya District.
The district consists of Caoya, Mingxiao, Mingzheng, Mingyi, Renai, Dechang, Pingdeng, Pingchang, Mingli, Xinyi, Xinde, Mingdao, Xinghua, Xingren, Qianzhen, Zhentung, Zhenrong, Zhenchang, Zhenhai, Zhenyang, Xingbang, Zhenzhong, Zhenbei, Zhongchun, Zhongcheng, Xishan, Minquan, Jianlong, Zhenxing, Lianghe, Xijia, Chengxing, Chengfeng, Xingzhong, Xingtung, Zhongxiao, Fuguo, Zhunei, Zhutung, Zhunan, Zhubei, Zhuxi, Zhuzhong, Ruizhu, Ruinan, Ruifeng, Ruixiang, Ruitung, Ruihe, Ruiping, Ruilong, Ruibei, Ruixi, Ruigang, Ruixing, Ruicheng, Ruiwen, Ruihua and Ruichang villages.[1]
Cianjhen is served by the following metro stations:
Cianjhen is the southern terminus of Freeway 1, while Provincial Highway 17 also runs through the district.