Template:2021 Events

January
 January 4, 2021 
 * Kimetsu no Yaiba Official Character Book Volume 3 is released in Japan.

February Back to Top
 February 4, 2021   February 14, 2021 
 * The Kimetsu no Yaiba Koyoharu Gotoge Art Book: Ikuseiso is released in Japan.
 * Kimetsu Academy Story: Valentine Edition, a series of four Valentine's Day-theme shorts, is released in Japan.

March Back to Top
 March 4, 2021 
 * The first two Kimetsu no Yaiba paint books, Red and Blue, are released in Japan.

April Back to Top
 April 23, 2021 
 * Kimetsu no Yaiba: The Movie - Mugen Train premiers in North American theaters.

May Back to Top
 May 26, 2021 
 * Kimetsu no Yaiba: Kamado Tanjiro Risshi-hen Original Soundtrack is released.

June Back to Top
 June 16, 2021 
 * Demon Slayer: Kimetsu no Yaiba the Movie - Mugen Train Music Collection is released.
 * Kimetsu no Yaiba: The Movie - Mugen Train is released DVD and Blu-ray in Japan.

August Back to Top
 August 4, 2021 
 * The serialized spinoff manga Kimetsu Gakuen! debuts in Japan.

October Back to Top
 October 4, 2021   October 10, 2021   October 14, 2021   October 15, 2021   October 17, 2021   October 24, 2021   October 26, 2021 
 * The second pair of Kimetsu no Yaiba paint books, Orange and Indigo, are released in Japan.
 * Episode 27 airs in Japan.
 * The video game Demon Slayer: Kimetsu no Yaiba - The Hinokami Chronicles is released in the Eastern hemisphere.
 * Demon Slayer: Kimetsu no Yaiba - The Hinokami Chronicles is released in the Western hemisphere.
 * Episode 28 airs in Japan.
 * Episode 29 airs in Japan.
 * The Kimetsu no Yaiba: Koyoharu Gotoge Exhibition opens in Tokyo in its first of two runs in Japan.

November Back to Top
 November 7, 2021   November 14, 2021   November 17, 2021   November 21, 2021   November 28, 2021 
 * Episode 30 airs in Japan.
 * Episode 31 airs in Japan.
 * The "Akeboshi" and "Shirogane" singles are released.
 * Episode 32 airs in Japan.
 * Episode 33 airs in Japan.

December Back to Top
 December 5, 2021   December 12, 2021   December 19, 2021   December 26, 2021 
 * Episode 34 airs in Japan.
 * Episode 35 airs in Japan.
 * The Kimetsu no Yaiba: Koyoharu Gotoge Exhibition closes its run in Tokyo.
 * Episode 36 airs in Japan.
 * Episode 37 airs in Japan.