Abigail Kathleen Breslin (born April 14, 1996) is an American actress and singer. She has received various accolades, including two Critics' Choice Movie Awards, and nominations for an Academy Award, a British Academy Film Award, and two Screen Actors Guild Awards.

Born and raised in New York City, Breslin began acting in commercials when she was three years old and made her film debut in M. Night Shyamalan's science fiction horror film Signs (2002), for which she was nominated for a Young Artist Award. Her early roles also included Raising Helen (2004) and The Princess Diaries 2: Royal Engagement (2004).

Breslin rose to prominence with the comedy-drama film Little Miss Sunshine (2006), for which she received a nomination for the Academy Award for Best Supporting Actress at age 10. She went on to establish herself as a mainstream actress with roles in the films No Reservations (2007), Nim's Island (2008), Definitely, Maybe (2008), My Sister's Keeper (2009), Zombieland (2009), Rango (2011), The Call (2013), August: Osage County (2013), Maggie (2015), Freak Show (2017), Zombieland: Double Tap (2019), and Stillwater (2021). Between 2015 and 2016, she had a starring role in the horror-comedy series Scream Queens on Fox, her first regular role in a television series.