Rósa Arianna McGowan (born September 5, 1973) is an American actress and activist. After her film debut in a brief role in the comedy Encino Man (1992), she achieved recognition for her performance in the dark comedy The Doom Generation (1995), receiving an Independent Spirit Award nomination.

McGowan had her breakthrough in the horror film Scream (1996) and subsequently headlined the films Going All the Way (1997), Devil in the Flesh (1998), and Jawbreaker (1999). During the 2000s, she became known to television audiences for her role as Paige Matthews in The WB supernatural drama series Charmed (2001–2006). She starred in the double-feature film Grindhouse (2007), for which she was nominated for the Saturn Award for Best Supporting Actress.