Katherine Matilda Swinton (born November 5, 1960) is an award-winning British actress of Scottish descent, known for her versatile roles in independent films and blockbusters. She is a recipient various accolades throughout her long career, including an Academy Award and two BAFTA Awards, in addition to being nominated for three Golden Globe Awards and five Screen Actors Guild Awards.

Swinton began her career by appearing in experimental films starting with Caravaggio (1986), followed by The Last of England (1988), War Requiem (1989), and The Garden (1990). She won the Volpi Cup for Best Actress at the Venice Film Festival for her portrayal of Isabella of France in Edward II (1991). She next starred in Sally Potter's Orlando (1992), for which she received a nomination for the European Film Award for Best Actress. She was nominated for a Golden Globe Award for her performance in The Deep End (2001), and followed this with appearances in Vanilla Sky (2001), Adaptation (2002), Constantine (2005), Julia (2008), and I Am Love (2009).