Nancy Allen may refer to:
Nancy Allen (born 1954) is a prominent harpist from the United States.
The daughter of a public school music teacher in the Carmel, New York district, she won numerous international competitions starting at a young age. In 1973 she won first prize at the Fifth International Harp Competition in Israel, one of the most prestigious international harp competitions in the world. Since 1999 she has been the Principal Harpist of the New York Philharmonic, playing under music director and conductor Lorin Maazel, and in her 20-year teaching career has trained many successful students as well as serving concurrently as head of the harp departments at the Juilliard School (where she received her bachelor's and master's degrees) and Aspen Music Festival and School. She was formerly the head of the harp department at the Yale School of Music. Her own teachers included Pearl Chertok, Lily Laskine, Marcel Grandjany, and her predecessor at Juilliard, Susann McDonald.
She has made numerous recordings (one nominated for a Grammy Award) and has performed solo concerts for thirty years.
Nancy Anne Allen (born June 24, 1950) is an American actress and cancer activist best known for her roles in the films Carrie (1976), RoboCop (1987), and Dressed to Kill (1980), the latter of which earned her a Golden Globe nomination.
Allen began an acting and modelling career as a child, and from the mid-1970s appeared in small film roles, most notably the anchor of Robert Zemeckis's ensemble comedy I Wanna Hold Your Hand (1978) and in Steven Spielberg's 1979 comedy 1941. A pivotal supporting role in Carrie (1976) brought her recognition, and after marrying the director Brian De Palma, she appeared in several of his films, including Dressed to Kill (1980) and Blow Out (1981). Her subsequent films include Strange Invaders (1983), The Philadelphia Experiment (1984), Poltergeist III (1988), Limit Up (1990), Out of Sight (1998), and the RoboCop trilogy.
She was born in New York City, the youngest of three children of Eugene and Florence Allen. Her father was a police lieutenant in Yonkers, where she was raised.