Chandigarh Metro is an approved rapid transit system to serve the Chandigarh Capital Region, which includes Chandigarh and adjacent areas in Punjab and Haryana states of India. In Phase-1, to be progressively built and operationalised between 2027 and 2034, 3 lines will connect tri-cities of Chandigarh, Mohali in Punjab and Panchkula in Haryana. Phase-2, to be constructed after 2034, will connect Pinjore in Haryana and further expand the network in Mohali with 2 more lines. The project, which was initially scrapped in 2017 due to low financial viability, was approved in March 2023 and received formal clearance in July 2023 from the governments of Punjab and Haryana after a Detailed Project Report (DPR) was created.

Chandigarh is a union territory and planned city in northern India, serving as the shared capital of the surrounding states, namely Punjab to the north, west and the south, and Haryana to the east. Chandigarh constitutes the bulk of the Chandigarh Capital Region or Greater Chandigarh, which also includes the adjacent satellite cities of Panchkula in Haryana and Mohali in Punjab. It is situated near the foothills of the Himalayas, 260 km north of New Delhi and 229 km southeast of Amritsar.