Alison Steadman is an English actress. She received the 1977 Evening Standard Theatre Award for Best Actress for Abigail's Party, the 1991 National Society of Film Critics Award for Best Actress for the Mike Leigh film Life Is Sweet and the 1993 Olivier Award for Best Actress for her role as Mari in the original production of The Rise and Fall of Little Voice. In a 2007 Channel 4 poll, the ‘50 Greatest Actors’ voted for by other actors, she was ranked 42.

Abigail's Party is a play for stage and television, devised and directed in 1977 by Mike Leigh. It is a suburban situation comedy of manners, and a satire on the aspirations and tastes of the new middle class that emerged in Britain in the 1970s. The play developed in lengthy improvisations during which Mike Leigh explored the characters with the actors, but did not always reveal the incidents that would occur during the play. The production opened in April 1977 at the Hampstead Theatre, and returned after its initial run in the summer of 1977, for 104 performances in all. A recording was arranged at the BBC as a Play for Today, produced by Margaret Matheson for BBC Scotland and transmitted in November 1977.