Emilie de Ravin (; born 27 December 1981) is an Australian actress. She became famous by starring in the popular teen series Roswell but gained even greater fame by starring in the hit ABC drama Lost as Claire Littleton.

Ravin's film credits include Santa's Slay, Ball Don't Lie, and the box-office hit The Hills Have Eyes. She is also known for her role as Brendan Frye's heroin-addicted ex-girlfriend Emily in the neo-noir film Brick. Ravin was included on Maxims Hot 100 list three times: in 2005, on #47, the next year on #65, and in 2008 on #68. She had a small cameo alongside lead Johnny Depp in Public Enemies.