Emperor Suzong of Tang (February 21, 711 – May 16, 762; r. 756 – 762), personal name Li Heng, né Li Sisheng (李嗣升), known as Li Jun (李浚) from 725 to 736, known as Li Yu (李璵) from 736 to 738, known briefly as Li Shao (李紹) in 738, was an emperor of the Tang Dynasty and the son of Emperor Xuanzong.