Sarah Ruth Snook (born 1 December 1987) is an Australian actress. She is known for her starring role as Shiv Roy in the television series Succession (2018–2023), for which she earned critical acclaim in international media. She has won several awards including a Golden Globe Award, a Screen Actors Guild Award and a Critics’ Choice Television Award, with nominations for two Primetime Emmy Awards.

Among other films, Snook has appeared in Not Suitable for Children (2012), These Final Hours (2013), Predestination (2014), The Dressmaker (2015), Steve Jobs (2015), The Glass Castle (2017), and Pieces of a Woman (2020). She won two AACTA Awards for her leading roles in Sisters of War (2010) and Predestination (2014).