Thoroughly Modern Millie is a Tony Award-winning musical with music by Jeanine Tesori, lyrics by Dick Scanlan, and a book by Richard Morris and Scanlan. Based on the 1967 film of the same name, Thoroughly Modern Millie tells the story of a small-town girl, Millie Dillmount, who comes to New York City to marry for money instead of love – a thoroughly modern aim in 1922, when women were just entering the workforce. Millie soon begins to take to delight in the flapper lifestyle, but problems arise when she checks into a hotel owned by the leader of a white slavery ring in China.

The original production of the comic pastiche, directed by Michael Mayer, underwent several workshops in New York and performances at the La Jolla Playhouse in San Diego, California, before ultimately opening on Broadway on April 15, 2002. The production subsequently won six 2002 Tony Awards, including Best Musical. Due to the success of the original Broadway production, both a United States tour and a West End production launched in 2003, followed by a United Kingdom tour in 2005. The musical has become a very popular choice for high school productions.