Bravest Warriors is an animated series. Set in the year 3085 onwards, it follows four teenage heroes-for-hire as they warp through the universe to save adorable aliens and their worlds using the power of their emotions. It was created by animator Pendleton Ward, also the creator of Cartoon Network's Adventure Time.

The animated series began streaming on Frederator's Cartoon Hangover channel on YouTube on November 8, 2012. The series is based on a short produced for Frederator's Nicktoons animation incubator series Random! Cartoons that aired on January 10, 2009. A comic book adaptation published by Boom! Studios launched on October 24, 2012.

On October 20, 2016, a television series was announced that would also serve as a continuation of the web series. The series, which is officially considered the fourth and final season, was produced by Nelvana in Canada, in association with Frederator. It started airing on VRV in the United States on December 25, 2017, and Teletoon in Canada on September 3, 2018. A 21-minute documentary was released on December 11, 2017.

As the voice acting for the television series was recorded between Los Angeles, California and Toronto, Ontario, although far from being the first show from using both SAG-AFTRA and ACTRA, it is the first North American animated production to credit both unions due to using more American voice actors over Canadian voice actors.

The show won the Shorty Award for Best Web Show in 2013 and was nominated in the Annecy International Animated Film Festival. It is also a 2015 Webby Award honoree. The fourth season was nominated for the 2019 Youth Media Alliance award for Best Digital First Content for all age groups.

On December 3, 2019, it was announced that there will be a Catbug spinoff and Pendleton Ward will also be involved with it. However as of November 2023, no updates have been announced.

On January 4, 2023, Genius Brands (now Kartoon Studios) announced that they would sell a 50% stake in the series alongside the Catbug spin-off to Japanese company Toho International, speculating a potential comeback for the series.

The 4th season of Bravest Warriors became available on the official Cartoon Hangover YouTube channel on January 26, 2024.