Stella Nina McCartney (born 13 September 1971) is an English fashion designer. She is the daughter of former Beatle Sir Paul McCartney and the late photographer and animal rights activist, Linda McCartney.

Stella McCartney was born in London, the second child of former Beatle Sir Paul McCartney and Linda Eastman. She is named after her maternal great-grandmothers: both of Linda McCartney's grandmothers were named Stella. As a young girl, McCartney travelled the globe with her parents and their pop group Wings, along with her siblings: older half-sister Heather (who was legally adopted by Paul McCartney), older sister Mary, and younger brother James. According to her father, the name of Wings was inspired by Stella's difficult birth. As his daughter was being born by emergency caesarean section, Paul sat outside the operating room and prayed that she be born "on the wings of an angel." Wings toured from shortly after her birth in 1971 until 1980.

Despite their fame, the McCartneys wanted their children to lead as normal a life as possible so Stella and her siblings attended the local state school in East Sussex, one of them being Bexhill College. McCartney has said that while attending state school, she was a victim of bullying, as well as a bully herself.