Dianne Evelyn Wiest (; born March 28, 1946) is an American actress. She has twice won the Academy Award for Best Supporting Actress, for the Woody Allen films Hannah and Her Sisters (1986) and Bullets over Broadway (1994), and appeared in three other films by Allen; The Purple Rose of Cairo (1985), Radio Days (1987), and September (1987). She also received an Academy Award nomination for Parenthood (1989), and won a Golden Globe Award for Bullets over Broadway.
Wiests other film appearances include Footloose (1984), The Lost Boys (1987), Bright Lights, Big City (1988), Edward Scissorhands (1990), Little Man Tate (1991), The Birdcage (1996), Practical Magic (1998), Dan in Real Life (2007), Synecdoche, New York (2008), Rabbit Hole (2010), and Sisters (2015). She won the 1997 Primetime Emmy Award for Outstanding Guest Actress in a Drama Series for Road to Avonlea, and the 2008 Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series for In Treatment (2008–09). Her other television credits include Law & Order (2000–02), and the CBS comedy series Life in Pieces (2015–present).