Olivia Wilde (born Olivia Jane Cockburn; March 10, 1984) is an American actress and filmmaker. She played Remy "Thirteen" Hadley on the medical-drama television series House (2007–2012). She appeared in the action films Tron: Legacy (2010) and Cowboys & Aliens (2011), the romantic drama film Her (2013), the comedy film The Incredible Burt Wonderstone (2013), and the horror film The Lazarus Effect (2015). She made her Broadway debut playing Julia in 1984 (2017).

Wilde made her directorial debut with the teen comedy film Booksmart (2019), which received critical acclaim and won the Independent Spirit Award for Best First Feature. She subsequently directed the thriller film Don't Worry Darling (2022) and The Invite (2026), both of which she also starred in.