Line 9 of the Hangzhou Metro (simplified Chinese: 杭州地铁九号线; traditional Chinese: 杭州地鐵九號線; pinyin: Hángzhōu Dìtiě Jiǔhào Xiàn) is a metro line in Hangzhou.

The line is 29.45 km (18.30 mi) long and runs in a north–south direction between Guanyintang and Long'an.

[1] The line is colored brown on system maps.

- Operational - Under construction