The Hangzhou Metro (Chinese: 杭州地铁) is a rapid transit system that serves Hangzhou, the capital city of Zhejiang province, China. The system opened on November 24, 2012. It is the 17th city in China to operate a rapid transit system.

There are currently 12 lines in operation. The adjacent Shaoxing Metro connects the system at Guniangqiao station on Line 5, and the Hangzhou-Haining Intercity Rail connects to the system at Linpingnan Railway Station on Line 9.

The Hangzhou Metro has the only metro system map in China whose first seven lines follow the hue order of the rainbow colors.

Annual urban-rail passenger volume reported for Hangzhou by CAMET. Values are passenger-trips in units of 10,000; reporting scope may include non-metro urban-rail modes and can vary by year.

Year-end urban-rail operating length reported for Hangzhou by CAMET, separating the metro series from the all-mode city total where both are reported.

The planning for a metro system in the city started in the 1990s and was about to start construction works in September 2003, but the State Council suspended construction works due to increasing costs. The state council approved the construction and operation of a rapid transit system by the Hangzhou Subway Group Co. Ltd in Hangzhou on June 5, 2005. The preliminary design for the first line, Line 1, was approved on January 11, 2007, by the Development and Reform Commission after four days of study. It would be 47.97 km (29.81 mi) long, of which 41.36 km (25.70 mi) is underground, 6.14 km (3.82 mi) elevated, and 0.47 km (0.29 mi) at grade.