Lee Chae-young (Korean: 이채영; born April 29, 1986) is a South Korean actress.

She debuted in a music video called "Come On" by the Hip-hop group Turtles in 2003. The following year, she appeared in Rain's "I Do" music video and in 2007, Yoon Mi-rae's "Did You Forget It". Her first television drama was Witch Yoo Hee, a romantic comedy, as Chef Marie. It wasn't until she was cast as Sa Illa in the 2009 historical drama Iron Empress and took the role as a host on the Korean Broadcasting System (KBS) variety show Star Golden Bell that her popularity rose. She is a Dankook University graduate and the younger sister of Seo Seung-ah.