Ghislaine Noelle Marion Maxwell is a British former socialite, convicted of sex trafficking and other offences connected with the financier and sex offender Jeffrey Epstein. She worked for her father Robert Maxwell until his death in 1991, when she moved to the United States and became a close associate of Epstein. Maxwell founded a non-profit group for the protection of oceans, The TerraMar Project, in 2012. The organisation announced cessation of operations on 12 July 2019, a week after the sex trafficking charges brought by New York federal prosecutors against Epstein became public. Maxwell is a naturalised US citizen but retains citizenship of the UK and France.

On 2 July 2020, Maxwell was arrested and charged by the federal government of the United States with the crimes of enticement of minors and sex trafficking of underage girls, related to her association with Epstein. On 29 December 2021, she was convicted on five counts, including one of sex trafficking of a child.