Kaohsiung Metro (Chinese: 高雄大眾捷運系統, 高雄捷運) is a rapid transit and light rail system covering the metropolitan area of Kaohsiung, Taiwan. Its rapid transit network is known as Kaohsiung Mass Rapid Transit System or Kaohsiung Rapid Transit (KRT). Construction of the MRT started in October 2001. The MRT opened in 2008 and the Circular light rail in 2015. Kaohsiung Metro is operated by the Kaohsiung Rapid Transit Corporation (KRTC; Chinese: 高雄捷運公司) under a BOT contract the company signed with the Kaohsiung City Government.

The Circular light rail is a light rail loop line in Kaohsiung, Taiwan, operated by the Kaohsiung Rapid Transit Corporation. The line stretches over a length of 22.1 kilometers and has 38 stations. The southern part of this line makes use of the defunct tracks of the Kaohsiung Harbor Railway Line. Construction cost was forecasted to be 16.5 billion New Taiwan dollars.