Xuan Ming 玄冥 was in Chinese mythology an assistant spirit (shen 神) or "official" (si 司) of the mythological Emperor Zhuan Xu 顓頊. Both controlled the region of the north. The words xuan and ming both mean "dark" or "obscure". Another name of Xuan Ming mentioned in the book Shanhaijing 山海經 is Yu Qiang 禺彊, lit. "region of the sunset".
A fragment of the the book Fengsu tongyi 風俗通義 says that Xuan Ming was the controller of rain (yu shi 雨師).