Line 3 of the Hangzhou Metro () is a metro line in Hangzhou. The line is long. It will run in a southwest-northeast direction between Wushanqiancun station in Yuhang District and Xingqiao station in Linping District in the east, passing through downtown Hangzhou and providing transfers with multiple other lines in the system. The line uses 6-car Class A<sub>H</sub> rolling stock, which is designed for exclusive use in Hangzhou Metro. The line is colored yellow on maps.
The initial section of the line, from Xingqiao to Chaowang Road was opened to public on 21 February 2022, and the remaining section from Chaowang Road to West Wenyi Road and the branch from South Xixi Wetland to Shima was opened on 10 June 2022. The Northern extension from West Wenyi Road to Wushanqiancun was opened on 22 September 2022.
- Operational <br /> - Under construction <br />