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.

Kaohsiung, officially Kaohsiung City, formerly known as Takau or Takao , is a special municipality located in southern Taiwan. It ranges from the coastal urban center to the rural Yushan Range with an area of 2,952 km2 (1,140 sq mi). Kaohsiung City has a population of approximately 2.73 million people as of October 2023 and is Taiwan's third most populous city and largest city in southern Taiwan.