Yu Zhou (simplified Chinese: 于宙; traditional Chinese: 於宙; pinyin: Yú Zhòu) was a Chinese folk musician and Falun Gong practitioner who died in police custody in February 2008, at the age of 42. Ten days before his death, traffic police stopped the professional musician in Beijing, allegedly for speeding on the way home from a concert. After they found Falun Gong paraphernalia in his car, authorities detained Yu. His wife Xu Na, who had previously been imprisoned for her practicing Falun Gong, was also taken into custody.