Great Shu, known in historiography as the Former Shu or occasionally Wang Shu (王蜀), was a dynastic state of China and one of the Ten Kingdoms during the Five Dynasties and Ten Kingdoms period. It existed from 907 to 925 CE.

The Five Dynasties and Ten Kingdoms period was an era of political upheaval and division in Imperial China from 907 to 979. Five dynastic states quickly succeeded one another in the Central Plain, and more than a dozen concurrent dynastic states, collectively known as the Ten Kingdoms, were established elsewhere, mainly in South China. It was a prolonged period of multiple political divisions in Chinese imperial history.