The Taoyuan Metro is a rapid transit system serving Taoyuan City, as well as parts of New Taipei City and Taipei City, in Taiwan. The most recently proposed network includes 11 lines and extensions, of which 2 are now under construction. The Taoyuan Airport MRT is the only line currently in operation. The system opened with the opening of the first line in the system, Taoyuan Airport MRT, for trial passenger service on 2 February 2017 and revenue passenger service on 2 March 2017.

Taoyuan is a special municipality located in northwestern Taiwan, neighboring New Taipei City to the north-east, Yilan County to the south-east, and Hsinchu County to the south-west. Taoyuan District is the seat of the municipal government and which, along with Zhongli District, forms a large metropolitan area. Taoyuan developed from a satellite city of Taipei metropolitan area to become the fourth-largest metropolitan area, and fifth-largest populated city in Taiwan. "Taoyuan" literally means "peach garden" in Chinese, since the area used to have many peach trees. Formerly a county, Taoyuan became the latest new founding special municipality in 2014.