Line 8 of the Suzhou Metro () is a L-shaped rapid transit line on both the east-west and north-south axes. It serves Suzhou New District, Gusu District, Xiangcheng District, and Suzhou Industrial Park. Construction started on September 30, 2019, and completed in March 2024. Line 8 was opened on September 10, 2024.
A one-station extension from Chefang to Xinpingjie is under planning. The underground extension will be 1.34 km long.