Xu Hui (Chinese: 徐惠; 627–650) was a female Chinese poet, "the first of all women poets of the Tang, an individual scarcely even noted in traditional literary history... but the only one of the thirty-plus 'empresses and consorts'...given biographies in the official Tang histories to have any of her own writings quoted there."

Xu Hui was the child prodigy daughter of Xu Xiaode, from Changcheng in Huzhou (in modern Zhejiang province). She became a minor consort to the Tang dynasty's second emperor, Emperor Taizong of Tang.

Xu Hui is one of China's outstanding early female poets, and is believed to have written around one thousand poems.