Emperor Taizu of Song (21 March 927 – 14 November 976), personal name Zhao Kuangyin, courtesy name Yuanlang, was the founder and first emperor of the Song dynasty of China. He reigned from 960 until his death in 976. Formerly a distinguished military general of the Later Zhou dynasty, Emperor Taizu came to power after staging a coup d'état and forcing Emperor Gong, the last Later Zhou ruler, to abdicate the throne in his favour.

During his reign, Emperor Taizu conquered the states of Southern Tang, Later Shu, Southern Han and Jingnan, thus reunifying most of China proper and effectively ending the tumultuous Five Dynasties and Ten Kingdoms period. To strengthen his control, he lessened the power of military generals and relied on civilian officials in administration. He was succeeded by his younger brother, Zhao Kuangyi (Emperor Taizong).