Emperor Yang of Sui, personal name Yang Guang (楊廣), alternative name Ying (英), Xianbei name Amo (阿摩), also known as Emperor Ming of Sui (隋明帝) during the brief reign of his grandson Yang Tong, was the second emperor of the Sui dynasty of China.

The Xianbei were an ancient nomadic people that once resided in the eastern Eurasian steppes in what is today Mongolia, Inner Mongolia, and Northeastern China. The Xianbei were strongly suggested to be a multilingual, multi-ethnic confederation consisting of mainly Mongolic, and, to a minor degree, Tungusic and Turkic peoples. They originated from the Donghu people who splintered into the Wuhuan and Xianbei when they were defeated by the Xiongnu at the end of the third century BC. The Xianbei were largely subordinate to larger nomadic powers and the Han dynasty until they gained prominence in 87 AD by killing the Xiongnu Chanyu Youliu. However unlike the Xiongnu, the Xianbei political structure lacked the organization to pose a concerted challenge to the Chinese for most of their time as a nomadic people.