Nancy Laura Spungen (/ˈspʌŋɡən/; February 27, 1958 – October 12, 1978) was the American girlfriend of English musician Sid Vicious and a figure of the 1970s punk rock scene.

Known for being a groupie, she flew to London in December 1976 at the height of the punk rock movement, where she became involved with Vicious, the bassist for the Sex Pistols.

In October 1978, Spungen was found dead in the bathroom of the couple's room at the Hotel Chelsea from a single stab wound to her abdomen.

Vicious was charged with her second-degree murder but died of a heroin overdose while on bail in February 1979, before the case could be brought to trial.

Various authors and filmmakers have speculated about Vicious' role in Spungen's death, and the possibility that she was killed by a drug dealer who frequently visited their room.

[3][4] Spungen's father was a traveling salesman and her mother later owned an organic food store called The Earth Shop in nearby Jenkintown.

However, it was then noted that Spungen’s skin was jaundiced and that she showed symptoms of severe cyanosis, forcing the newborn to undergo immediate blood transfusions; her parents were not able to see her or hold her at this point, preventing potential bonding-time.

[11][page needed] Susan, who later became a noted author and food stylist, said she had "mixed memories" of her sister: "We were happy as kids and we played together and I looked up to [Nancy].

[14] Spungen's father traveled to Boulder and accepted a plea bargain on her behalf, under which she agreed to be banished from the state of Colorado.

[14] Spungen left home at age 17 and moved to New York City,[13] where she supported herself via prostitution,[15] amateur music journalism,[16] and retail jobs at clothing stores.

In December 1976, Spungen flew to London with The Heartbreakers and met the Sex Pistols, which later included bassist Sid Vicious.

[24] Spungen is buried in the King David Memorial Park, a traditional Jewish cemetery in Bensalem Township, Pennsylvania.