Xia Zhiguang (born January 4, 2000, in Hefei, Anhui, China) is a Chinese singer, dancer, and actor, best known as a main dancer of the boy groups X NINE and R1SE. He began his dance training at a young age after being selected by instructor Wang Ping to join Anhui’s first boys’ dance troupe. In 2010, he was admitted to the Shanghai Theatre Academy's affiliated dance school, majoring in traditional dance. Xia rose to prominence in 2015 as a contestant on the talent show X-Fire, where he was selected for Shu Qi's team after performing Justin Bieber’s “Boyfriend.” He debuted with X NINE in 2016, releasing the group’s first EP X玖, and went on to hold concerts and release further music, including the successful 2018 EPs Keep Online (YES Version) and Keep Online (NO Version). In 2019, he joined the reality show Produce Camp 2019 alongside other X NINE and Wajijiwa Entertainment trainees, finishing fourth in the finale and debuting as a member of the temporary boy group R1SE. In recent years, he has focused on acting while continuing to release solo music, including the singles "下雨天" (2021) and "你的颜色" (2025).