"Ji Yeon" (/ˌdʒiː ˈjiːɒn/; from Korean 지연 [tɕi jʌn]) is the seventh episode of the American Broadcasting Company's fourth season of Lost and 79th episode overall. The episode was written by co-executive producers Edward Kitsis and Adam Horowitz, and directed by regular Lost editor Stephen Semel. It was first aired in the United States and Canada on March 13, 2008.