Lee Jang-woo (Hangul: 이장우; born June 1, 1986) is a South Korean actor and singer. He is best known for his roles in the television series Glory Jane and I Do, I Do. Lee also became popular after being paired with Ham Eun-jung in the third season of fictional marriage reality show We Got Married.
In 2009 Lee, No Min-woo, and Hyun Woo formed the K-pop project group 24/7, which has since disbanded after releasing the single 24 Hours a Day, 7 Days a Week. Lee also appeared in a 2011 music video for his cousin, singer Hwanhee.