Zhi Xu (智旭, 1599–1655) was a prominent Buddhist monk and scholar of the late Ming Dynasty. He is best known for his extensive commentaries on Buddhist sutras, particularly his magnum opus, the *Yao Jie Da Fang Guang Fo Hua Yan Jing* (要解大方廣佛華嚴經), a commentary on the *Avatamsaka Sutra*.