The fourth season of the Black Clover anime television series was directed by Ayataka Tanemura and produced by Pierrot. The season aired from December 8, 2020, to March 30, 2021, on TV Tokyo in Japan. The season started with three anime canon episodes supervised by author Yà «ki Tabata before continuing off with the 24th volume of his manga series of the same name starting on episode 158. Both Crunchyroll and Funimation licensed the series for an English release, with Crunchyroll simulcasting the fourth season, and Funimation producing a North American Simuldub. Funimation's adaptation aired from June 20 to October 10, 2021, on Adult Swim's Toonami programming block.
The fourth season uses four pieces of theme music: two opening theme and two ending theme. For the first three episodes of the season, the opening and ending themes are performed by Tomorrow X Together and "A Walk" performed by Gakuto Kajiwara. The second opening and ending themes, used from episodes 158 to 170, are "Grandeur" performed by Snow Man and "Beautiful" performed by Treasure.
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In Japan, Avex Pictures released the season on DVD and Blu-ray in one "chapter" volumes, with the sixteenth volume released on June 25, 2021.
In North America, Crunchyroll and Funimation released the season on DVD and Blu-ray combination sets, which was labelled as the fourth of the series. The now-combined company also distributes the series in Australia and New Zealand via Madman Entertainment, and via Manga Entertainment in the United Kingdom and Ireland.