The Yonan Lee clan (Korean: 연안 이씨; Hanja: 延安 李氏) is a Korean clan.
Their bon-gwan is in Yonan County, Hwanghae Province, now in North Korea.
According to the census held in 2015, the number of Yonan Lee clan’s member was 164,036.
It is did that around 660, he became a general during the Tang dynasty who came to Silla and eventually went to bring down Baekje.
Yi Mu [ja] founded the Yonan Lee clan after he was naturalized in Silla.