The Fairly OddParents is an American animated television series created by Butch Hartman for Nickelodeon. The series follows the adventures of Timmy Turner, a 10-year-old boy with two fairy godparents named Cosmo and Wanda, a malevolent 16-year-old babysitter named Vicky, and an insane teacher named Denzel Crocker. It was produced by Fred Seibert of Frederator Studios and Nickelodeon Animation Studio, with the sixth through tenth seasons in association with Billionfold Inc..

The series originated from shorts on Nick's animation showcase, Fred Seibert's Oh Yeah! Cartoons, that aired from 1998 to 2001. The show was later picked up as a half-hour series on March 30, 2001, due to its popularity. Originally, it ended on November 25, 2006, totaling five seasons, but resumed production in 2008. Production of the series ceased again after Hartman left Nickelodeon in February 2018. As of July 30, 2020, all seasons of the show are available on Paramount+. It is Nickelodeon's second longest-running animated show, behind SpongeBob SquarePants.

On February 24, 2021, it was announced that a live-action reboot series would be in development for Paramount+.