title: List of Oricon number-one albums of 2021
text: # List of Oricon number-one albums of 2021
  
  The following is a list of Oricon number-one albums of 2021.
  
  ## Chart history
  
  | Issue date | Album | Artist(s) |
  | - | - | - |
  | January 4 | O Album | KinKi Kids |
  | January 11 | This Is Arashi | Arashi |
  | January 18 | 1ST | SixTones |
  | January 25 | Straight Outta Rhyme Anima | Hypnosis Mic: Division Rap Battle |
  | February 1 | Still Dreaming | Tomorrow X Together |
  | February 8 | Aster | Colon |
  | February 15 | Live Loud | The Yellow Monkey |
  | February 22 | Sekai no Owari 2010–2019 | Sekai no Owari |
  | March 1 | Loveholic | NCT 127 |
  | March 8 | Hypnosis Mic: Division Rap Battle – 2nd D.R.B: Dotsuitare Hompo vs Buster Bros!!! | Hypnosis Mic: Division Rap Battle |
  | March 15 | SZ10th | Sexy Zone |
  | March 22 | Hypnosis Mic: Division Rap Battle – 2nd D.R.B: Bad Ass Temple vs Matenro | Hypnosis Mic: Division Rap Battle |
  | March 29 | Rainbow | Johnny's West |
  | April 5 | Hypnosis Mic: Division Rap Battle – 2nd D.R.B: Fling Posse vs Mad Trigger Crew | Hypnosis Mic: Division Rap Battle |
  | April 12 | The First Step: Treasure Effect | Treasure |
  | April 19 | Chōtokkyū ≠Me Iki | ≠Me |
  | April 26 | All Yours | Astro |
  | May 3 | Be | BTS |
  | May 10 | Border: Carnival | Enhypen |
  | May 17 | Border: Carnival | Enhypen |
  | May 24 | Zenbu, Naisho. | =Love |
  | May 31 | Hot Sauce | NCT Dream |
  | June 7 | Demon Slayer: Kimetsu no Yaiba – Tanjiro Kamado Risshi-hen Original Soundtrack | Various artists |
  | June 14 | Playful | Koichi Domoto |
  | June 21 | The Chaos Chapter: Freeze | Tomorrow X Together |
  | June 28 | BTS, the Best | BTS |
  | July 5 | BTS, the Best | BTS |
  | July 12 | BTS, the Best | BTS |
  | July 19 | L∞ve | Urashimasakatasen |
  | July 26 | Butter | BTS |
  | August 2 | Re:Sense | King & Prince |
  | August 9 | Superstar | Shinee |
  | August 16 | Going to Destruction | Bish |
  | August 23 | Best of Kis-My-Ft2 | Kis-My-Ft2 |
  | August 30 | Editorial | Official Hige Dandism |
  | September 6 | Go to Funk | Endrecheri |
  | September 13 | Step | V6 |
  | September 20 | Hypnosis Mic: Division Rap Battle – 2nd D.R.B: Buster Bros!!! VS Matenro VS Fling Posse | Hypnosis Mic: Division Rap Battle |
  | September 27 | Gohan Misoshiru Nori Otsukemono Tamagoyaki feat. Umeboshi | Keisuke Kuwata |
  | October 4 | Sticker | NCT 127 |
  | October 11 | Snow Mania S1 | Snow Man |
  | October 18 | Freedom Only | Glay |
  | October 25 | Dimension: Dilemma | Enhypen |
  | November 1 | Attacca | Seventeen |
  | November 8 | Very6 Best | V6 |
  | November 15 | Attacca | Seventeen |
  | November 22 | Chaotic Wonderland | Tomorrow X Together |
  | November 29 | 8beat | Kanjani Eight |
  | December 6 | U | NiziU |
  | December 13 | Outstanding | HKT48 |
  | December 20 | Friends III | B'z |
  | December 27 | Time Flies | Nogizaka46 |
  