Lý (李) is a Vietnamese surname derived from the Chinese surname Li (李).
One of the earliest occurrences of the name Lý in Vietnam is the legendary warrior (Vietnamese language link), who lived around 200 BCE.
Lý Nam Đế was king of Annam from 544 to 548. He established the Early Lý dynasty, one of the first feudal dynasties in the history of Vietnam, which lasted until 602.
Lý Thái Tổ established the Lý dynasty (sometimes known as the Later Lý dynasty), which ruled the northern half of Vietnam from 1009 to 1225.