The Nick Cannon Show is an American comedy television series and a spin-off of All That. It aired on Nickelodeon's SNICK block from January 12, 2002, to February 22, 2003, along with All That, The Amanda Show and Taina. The premise of the semi-scripted show was that its star, Nick Cannon, a former cast member on All That, would come across a situation he thought needed changing and then "take over" to make things better, or at least funnier. At the end of each episode, Cannon would write "Nick Cannon Was Here" on something related to the day's episode just so he could leave his mark. It was a constant running gag. The show has yet to air on Nickelodeon or its sister networks ever again.

After production and crew changes occurred in the second season, the program suffered from low ratings and was canceled in February 2003. On November 11, 2013, iTunes released volumes 1 and 2 of The Nick Cannon Show with a total of 19 episodes.Guest stars on the show included Usher, Mary J. Blige, Britney Spears, Eddie Murphy, Will Smith, Willy Santos, Lil' Romeo, Kenan Thompson, Kel Mitchell and girl group 3LW.

Although a spin-off of All That, frequent collaborator Dan Schneider was not involved with The Nick Cannon Show.