Nicole Brown Simpson (May 19, 1959 – June 12, 1994) was an ex-wife of former American football player O. J. Simpson. She was murdered at her home in Los Angeles, California, U.S., along with her friend Ronald Goldman. Her ex-husband, O. J. Simpson was arrested and found not guilty of murdering both her and Goldman in a controversial criminal trial. O. J. Simpson was later found liable for the deaths in a civil suit brought by the families of the two victims.

The daughter of Juditha Anne and Louis Hezekiel Brown, Nicole was born in Frankfurt, Germany. The family moved to Garden Grove, California, where she grew up. She attended Gilbert Elementary School, Skylark Elementary School, Hare Intermediate School and Rancho Alamitos High School before moving to Monarch Bay, west of Dana Point, California, in her junior year along with younger sisters Dominique and Tanya and older sister Denise. Brown was elected one of the homecoming princesses at Dana Hills High School (the other being her sister Denise).

Nicole Brown met O. J. Simpson in June 1977 while working as a waitress at a Beverly Hills nightclub, Daisy. Although he was still married to his first wife Marguerite, Simpson and Brown began dating. Simpson and Marguerite divorced in March 1980, Brown and Simpson were married on February 2, 1985, five years after his retirement from professional football. They had two children together, Sydney Brooke (born October 17, 1985) and Justin Ryan Simpson (born August 6, 1988). The marriage lasted seven years, during which Simpson pleaded no contest to spousal abuse in 1989. Brown filed for divorce in 1992 citing "irreconcilable differences".