Kingdom is an anime adaptation of a manga series of the same title written and illustrated by Yasuhisa Hara.

On December 15, 2019, it was announced that the series will receive a third season along with a new production staff.

[2] On March 30, 2020, Funimation announced that they will stream the third season in U.S., Canada, the U.K., and Ireland.

On August 13, 2022, Funimation announced at 11:30 am Pacific Time, that the third season of the series would receive an English dub all 26 episodes.

[5][6] The opening themes are "TOMORROW" and "STACKiNG" by BiSH while the ending themes are "Deep inside" by Waterweed, and "kIng" by Emiko Suzuki.