Kim Yo Han (김요한) is a South Korean singer and rapper under OUI Entertainment. He is a member of the project boy group X1.
In 2019, he participated in Mnet's boy group survival show Produce X 101 representing OUI Entertainment. He finished in first place, thus becaming the center of X1. The group officially debuted on August 27, 2019 with the mini album, 비상 : Quantum Leap.