Melanie Thandiwe Newton OBE (born 6 November 1972), formerly credited as Thandie Newton, is a British actress.

Newton is known for starring roles such as the title character in Beloved (1998), Nyah Nordoff-Hall in Mission: Impossible 2 (2000), Tiffany in Shade (2003), Dame Vaako in The Chronicles of Riddick (2004), Christine in Crash (2004), Linda in The Pursuit of Happyness (2006), Libby in Run Fatboy Run (2007), Stella in RockNRolla (2008), Condoleezza Rice in W. (2008), Laura Wilson in 2012 (2009), Tangie Adrose in For Colored Girls (2010), Maeve Millay in Westworld (2016–2022), Roz Huntley in Line of Duty (2017), and Val in Solo: A Star Wars Story (2018).