Haikyuu!! is a Japanese sports anime and manga franchise centered on high-school volleyball, created by Haruichi Furudate and published in Shueisha's Weekly Shōnen Jump. The manga ran from February 20, 2012 to July 20, 2020, while Production I.G adapted the series for television, with the anime debuting in Japan on April 6, 2014 and its original run spanning through December 19, 2020. The franchise includes four TV seasons, with Season 1 premiering in 2014, Season 2 in 2015 to 2016, Season 3 in 2016, and Haikyu!! To the Top (Season 4) in 2020, alongside OVA side stories and recap films that fill in character moments between major arcs.
The series is known for Karasuno High's underdog rise in competitive volleyball, with rival schools forming a major part of the appeal. Haikyuu!! remains especially popular with sports-anime fans because it balances match strategy, teamwork, and character growth. The franchise continued into a theatrical-film era with Haikyu!! The Dumpster Battle in 2024, marking a shift from TV continuation to feature-film storytelling. For collectors, the most recognizable eras span Karasuno's early-season underdog run, the Shiratorizawa match period, the To the Top era, and the 2024 film era.