Toonsylvania is an American animated television series, which ran for two seasons in 1998 on the Fox Kids Network block (usually placed in a block called "The No Yell Motel" that contained other scary kids' shows such as Goosebumps and Eerie, Indiana) in its first season, then was moved to Monday afternoons from September 14, 1998 until January 18, 1999, when it was cancelled. It was executive produced in part by Steven Spielberg, as DreamWorks' first animated series.

The show had recurring cartoon series that appeared in each episode. Unlike Animaniacs, Toonsylvania did not have a wide range of characters and almost every episode had the same component segments. The main segments were "Frankenstein", "Night of the Living Fred" (most episodes on season one), "Attack of the Killer B Movies" (some episodes from season 1), "Igor's Science Minute", and "Melissa Screetch's Morbid Morals".