Miranda Jane Richardson (born 3 March 1958) is an English stage, film and television actress. She made her film debut playing Ruth Ellis in Dance with a Stranger in 1985 and went on to receive Academy Award nominations for Damage (1992) and Tom & Viv (1994). For Damage, she won the BAFTA Award for Best Supporting Actress. She has also won Golden Globe Awards for Enchanted April (1992) and the TV film Fatherland (1994).

She has also received Primetime Emmy, Screen Actors Guild Award, and Independent Spirit Award nominations for her film and television work.

Richardson began her career on stage and made her West End debut in the 1981 play Moving. She received a Best Actress Olivier Award nomination for the 1987 Royal Court production of A Lie of the Mind. On television, she starred in Blackadder (1986–1989), A Dance to the Music of Time (1997), Merlin (1998), The Lost Prince (2003), Gideon's Daughter (2006), the sitcom The Life and Times of Vivienne Vyle (2007), and Rubicon (2010).

Her other films include Empire of the Sun (1987), The Crying Game (1992), The Apostle (1997), Sleepy Hollow (1999), Chicken Run (2000), The Hours (2002), Spider (2002), Harry Potter and the Goblet of Fire (2005), The Young Victoria (2009), Made in Dagenham (2010), Belle (2013), and Stronger (2017).