A Fairly Odd Movie: Grow Up, Timmy Turner! (or simply known as A Fairly Odd Movie) is a 2011 live-action/animated comedy television film based on the animated series The Fairly OddParents. It first aired on Nickelodeon in the United States on July 9, 2011, to celebrate the series's tenth anniversary. Unlike the previous animated films of the series, this film is live-action with CGI animation. The television film was viewed by 5.8 million viewers during its original airing.

The film is set in the city of Dimmsdale and centers on Timmy Turner, his fairy godparents Cosmo and Wanda, and his fairy godbrother Poof. The events of the film take place at the end of the series. Timmy is now 23 years old but is still in fifth grade, with his fairy-obsessed teacher, Mr. Crocker. Timmy finds a loophole in the fairy rulebook: if he continues to act like a child, he will get to keep his fairies. A dilemma arises when Tootie, who was an awkward girl when she was 8 years old, returns to Dimmsdale as an attractive woman. Timmy falls in love with her, a sign that he is becoming an adult, which means that he is closer to losing his fairies. Meanwhile, an oil tycoon, named Hugh J. Magnate, Jr., teams up with Mr. Crocker and plans to use Timmy's fairies' magic to promote his oil business.

The film was released on Region 1 DVD by Nickelodeon Studios on July 11, 2011. The television film was released on Blu-ray on December 4, 2015.On March 14, 2012, Nickelodeon announced a sequel to the film, A Fairly Odd Christmas, which premiered during 2012's holiday season, while a third film, A Fairly Odd Summer, premiered on August 2, 2014. Drake Bell, Daniella Monet, and other cast members reprised their roles in both.