Line 5 of the Hangzhou Metro () is a subway line in Hangzhou. The line is colored <span style="color:#">cyan</span> on system maps. All 40 of its stations are underground.
The line is operated by Hangzhou MTR Line 5 Corporation Limited, a joint venture of MTR Corporation (60% shareholding) and Hangzhou Metro Group under PPP contract. Established on 26 June 2017, it's responsible for investment and construction for electrical and mechanical systems as well as the operations and maintenance of the Hangzhou Metro Line 5 (HZL5) for 25 years after full line opens.
Line 5 runs from East Nanhu to Guniangqiao. The western terminus, Guniangqiao, is an interchange with Shaoxing Metro Line 1.
- Operational - Under construction
Phase 1 of the line is long with 36 stations and runs between Central Park station in Yuhang District and Xiangzhang Road station in Xiaoshan District in the east, passing through downtown Hangzhou and providing transfers with multiple other lines in the system including Hangshao line (now Keqiao section of Line 1 of the neighboring Shaoxing Metro). Phase 2 of the line further extends 3.2 km and two stations east to . A , two station extension west to Laoyuhang station in Yuhang District started construction in 2018.
The Line 5 uses higher capacity six car Class A<sub>H</sub> trains which are 20 cm wider than the Class B trains used in other Hangzhou Metro lines, increasing capacity by about 10%.
On 1 August 2025, some people said that at around 7:00 am on a train departing from East Nanhu station, a screen onboard did not display Line 5 route map and the station information in usual. Instead, it displayed the looped advertisements and Hangzhou MTR logo only on the screen in 12 minutes until it returned to normal at 7:12 am.