Basic Instinct 2 (also known as Basic Instinct 2: Risk Addiction) is a 2006 erotic thriller film and the sequel to 1992's Basic Instinct. The film was directed by Michael Caton-Jones and produced by Mario Kassar, Joel B. Michaels, and Andrew G. Vajna. The screenplay was by Leora Barish and Henry Bean. It stars Sharon Stone, who reprises her role of crime mystery author Catherine Tramell (from the original Basic Instinct), and David Morrissey. The film is an international co-production of German, British, American, and Spanish production companies.

The film follows novelist and suspected serial killer Catherine Tramell, who is once again in trouble with the authorities, this time in London. Now Scotland Yard (Greater London's Metropolitan Police Service) appoints psychiatrist Dr. Michael Glass to evaluate her. As with SFPD Detective Nick Curran in the first film, Dr. Glass becomes a victim of Tramell's psychological manipulation.

After being in development limbo for several years, the sequel film was finally shot in London from April to August 2005, and was released on 31 March 2006. Unlike its predecessor, the film received negative reviews and underperformed at the box office.