Glenda May Jackson CBE (9 May 1936, Birkenhead, Cheshire – 15 June 2023) was an English actress and politician. She was one of the few artists to achieve the Triple Crown of Acting, having won two Academy Awards, three Emmy Awards and a Tony Award. She was made a CBE by Queen Elizabeth II in 1978.

She won the Academy Award for Best Actress twice: for her roles in Women in Love (1970) and A Touch of Class (1973). She won the BAFTA Award for Best Actress in a Leading Role for Sunday Bloody Sunday (1971). Her other notable roles include Mary, Queen of Scots (1971), Hedda (1975), The Incredible Sarah (1976) and Hopscotch (1980). She won two Primetime Emmy Awards for her role as Elizabeth I in the BBC series Elizabeth R (1971). She received the British Academy Television Award for Best Actress for her role in Elizabeth Is Missing (2019).