The Fix is a musical with book and lyrics by John Dempsey and music by Dana P. Rowe. It concerns the career of a fictional U.S. politician who gets mixed up with the Mafia.

It premiered at London's Donmar Warehouse in 1997.

The Fix was developed in association with Cameron Mackintosh under the working title Cal: A Musical Tale of Relative Insanity.

In 1997, The Fix premiered at the Donmar Warehouse, in a production directed by Sam Mendes, with musical direction by Colin Welford. Running from 29 April through 14 June, the production starred John Barrowman, Kathryn Evans and Philip Quast, and featured a young John Partridge and Rebecca Front in ensemble roles. Barrowman and Quast were both nominated for the 1998 Olivier Award for Best Actor in a Musical for their roles, with Quast winning the award. The production was also nominated for Olivier Awards for Best New Musical and Best Lighting Designer (for Howard Harrison).

In 1998, a reworked version of The Fix made its US premiere at the Signature Theatre. The production was directed by Eric D. Schaeffer and ran from 17 March through 10 May.

In 2015, the Signature Theatre revived The Fix, with Schaeffer again directing. The production ran from 11 August through 20 September.

In 2016, a fringe production played at the Union Theatre in London from 13 July through 6 August.

On 9 August 2017, Feinstein's/54 Below presented a one-night concert production of The Fix.