Brittany Anne Snow (born March 9, 1986) is an American actress and director. She rose to prominence after appearing in the CBS soap opera Guiding Light (1998–2001), for which she won a Young Artist Award for Best Young Actress and was nominated for two more Young Artist Awards and a Soap Opera Digest Award. She then appeared in the NBC drama series American Dreams (2002–2005), for which she was nominated for a Young Artist Award and three Teen Choice Awards.

Snow has appeared in various films, including The Pacifier (2005), John Tucker Must Die (2006), Hairspray (2007), Prom Night (2008), Would You Rather (2012), the Pitch Perfect film series (2012–2017), Bushwick (2017), Hangman (2017), Someone Great (2019), and X (2022). She also appeared in the NBC legal comedy-drama Harry's Law (2011) and the Fox drama series Almost Family (2019–2020).

Snow is a co-founder of the Love Is Louder movement, a project of the nonprofit Jed Foundation dedicated to combating bullying in schools. In 2020, Snow also launched a mental health letter-writing initiative called September Letters.