Emperor Zhezong of China (d. 1100)
Emperor Zhezong of Song (4 January 1077 – 23 February 1100), personal name Zhao Xu, was the seventh emperor of the Song dynasty of China. His original personal name was Zhao Yong but he changed it to "Zhao Xu" after his coronation. He reigned from 1085 until his death in 1100, and was succeeded by his younger half-brother, Emperor Huizong, because his son died prematurely.

Emperor Zhezong was the sixth son of Emperor Shenzong. He ascended the throne at the age of nine under the supervision of his grandmother, Grand Empress Dowager Gao.