The Adventures of Jimmy Neutron: Boy Genius, or just The Adventures of Jimmy Neutron and often shortened as Jimmy Neutron, is an American animated television series created by John A. Davis for Nickelodeon. Based on the 2001 film Jimmy Neutron: Boy Genius, the series serves as a sequel to the film. It originally aired on Nickelodeon for three seasons from July 20, 2002, to November 25, 2006. The show follows the eponymous character, an 11-year-old genius from the fictitious town of Retroville, Texas, as he goes on adventures with his best friends Carl Wheezer and Sheen Estevez. Throughout the show, various mishaps and conflicts occur on these adventures, as Jimmy's various inventions go awry. The series features voices of Debi Derryberry (Jimmy), Rob Paulsen (Carl), and Jeff Garcia (Sheen) for the three main characters. It was the first Nicktoon series to be animated in CGI.

Receiving mostly favorable reviews upon and since its release, the series has been the recipient of various nominations such as the Kids' Choice Award for Favorite Cartoon in 2006 and 2007, and has also won an Annie Award for "Outstanding Achievement in an Animated Television Production Produced for Children" in 2004 as well as a Motion Picture Sound Editors "Golden Reel Award". A spin-off, Planet Sheen, aired from 2010 to 2013.