THE9, also known as THE NINE, is a Chinese girl group formed through the 2020 Chinese survival show Youth With You 2 on iQIYI. The group consists of nine members: Liu Yuxin, Yu Shuxin, Xu Jiaqi, Yu Yan, Xie Keyin, An Qi, Zhao Xiaotang, Kong Xue'er and Lu Keran.
The group was formed on May 30, 2020, and officially debuted on August 10, 2020. It is currently managed by Idol Youth Entertainment of iQIYI.