Lý Thái Tổ (Hán tự: 李太祖, 8 March 974 – 31 March 1028), personal name Lý Công Uẩn, temple name Thái Tổ, was a Vietnamese monarch, the founder of the Lý dynasty of Vietnam and the 6th ruler of Đại Việt; he reigned from 1009 to 1028.