Chen Yueyi (Chinese: 陳月儀; fl.570 - 650), later Buddhist nun name Huaguang (華光), was a concubine of Emperor Xuan of the Northern Zhou dynasty of China.
He served as a general in several administrations of Northern Qi, founded by Gao's son Emperor Wenxuan of Northern Qi, eventually achieving the title of Prince of Xieyang.
In c.July 579,[2] Chen Yueyi was selected to be an imperial consort for Emperor Xuan, with the title of Defei (德妃).
Subsequently, as he wanted to create one more empress, he changed her title to Tianzhong Da Huanghou (天中大皇后) so that her Tianzuo Da Huanghou title could be given to Empress Yuchi Chifan.
Empress Chen became a Buddhist nun with the name of Huaguang, and she outlived Yang Jian's subsequent Sui dynasty.