Sideshow may refer to:
- Sideshow Bob, Krusty's former sidekick.
- Sideshow Mel, Krusty's current sideshow
- Sideshow Raheem, Krusty's brief sideshow in the 70s.
- Sideshow Luke Perry, brief sideshow, also Krusty's half brother.
- Sideshow Ralph Wiggum (in the future in Lisa's Wedding)
- Sideshow Cecil, Cecil Terwilliger refers to himself as "Sideshow Cecil" during the audition for Krusty in episode, Brother from Another Series