Animaniacs is an American animated comedy musical television series created by Tom Ruegger for Fox's Fox Kids block in 1993, before moving to The WB in 1995, as part of its Kids' WB afternoon programming block, until the series ended on November 14, 1998. It is the second animated series produced by Steven Spielberg's Amblin Entertainment in association with Warner Bros. Animation, after Tiny Toon Adventures. It initially ran a total of 99 episodes, along with a feature-length film, Wakko's Wish. Reruns later aired on Cartoon Network from 1997 to 2001, Nickelodeon from 2001 to 2003, Nicktoons from 2003 to 2005, and Discovery Family (known as The Hub Network at the time) from 2012 (when Wakko's Wish premiered) to 2014.

Animaniacs is a variety show, with short skits featuring a large cast of characters. While the show had no set format, the majority of episodes were composed of three short mini-episodes, each starring a different set of characters, and bridging segments. Hallmarks of the series included its music, satirical social commentary, pop culture references, character catchphrases, and innuendo directed at an adult audience.

A revival of the series was announced in January 2018, with a two-season order, to be produced in conjunction with Amblin Entertainment and Warner Bros. Animation, with producer Steven Spielberg, songwriter Randy Rogel, and many of the main voice actors returning. It premiered on November 20, 2020, on Hulu, with a second season premiering on November 5, 2021, and a third and final season premiering on February 17, 2023.