Ana Lucia Cortez is a fictional character on the ABC television series Lost, played by Michelle Rodriguez. Ana Lucia made her first appearance as a guest star in the first season finale, and became part of the main cast for season two. After Oceanic Flight 815 splits in mid-air, the tail section and fuselage crash on opposite sides of a mysterious island. Ana Lucia becomes the leader of the tail section. Flashbacks in her two centric episodes, "Collision" and "Two for the Road", show her life as a police officer before the crash.

Lost is an American science fiction adventure drama television series created by Jeffrey Lieber, J. J. Abrams, and Damon Lindelof that aired on ABC from September 22, 2004, to May 23, 2010, over six seasons and 121 episodes. It contains elements of supernatural fiction, and follows the survivors of a commercial jet airliner flying between Sydney and Los Angeles, after the plane crashes on a mysterious island somewhere in the South Pacific Ocean. Episodes typically feature a primary storyline set on the island, augmented by flashback or flashforward sequences which provide additional insight into the involved characters.