# List of 2021 box office number-one films in Japan

The following is a list of 2021 box office number-one films in Japan by week. When the number-one film in gross is not the same as the number-one film in admissions, both are listed.
| Week # | Date | Film | Gross | Notes |
| 1 | January 3, 2021 | Demon Slayer: Kimetsu no Yaiba the Movie: Mugen Train | US$6,583,900 | |
| 2 | January 10, 2021 | Gintama: The Final | US$2,756,200 | In attendance |
| 2 | January 10, 2021 | Demon Slayer: Kimetsu no Yaiba the Movie: Mugen Train | US$2,871,300 | In gross |
| 3 | January 17, 2021 | Demon Slayer: Kimetsu no Yaiba the Movie: Mugen Train | US$1,957,200 | |
| 4 | January 24, 2021 | Demon Slayer: Kimetsu no Yaiba the Movie: Mugen Train | US$1,774,400 | |
| 5 | January 31, 2021 | We Made a Beautiful Bouquet | US$1,824,000 | |
| 6 | February 7, 2021 | We Made a Beautiful Bouquet | US$2,103,900 | |
| 7 | February 14, 2021 | We Made a Beautiful Bouquet | US$1,892,200 | |
| 8 | February 21, 2021 | We Made a Beautiful Bouquet | US$1,777,000 | |
| 9 | February 28, 2021 | We Made a Beautiful Bouquet | US$1,651,500 | |
| 10 | March 7, 2021 | We Made a Beautiful Bouquet | US$1,438,200 | In attendance |
| 10 | March 7, 2021 | Demon Slayer: Kimetsu no Yaiba the Movie: Mugen Train | US$1,502,700 | In gross |
| 11 | March 14, 2021 | Evangelion: 3.0+1.0 Thrice Upon a Time | US$10,779,600 | |
| 12 | March 21, 2021 | Evangelion: 3.0+1.0 Thrice Upon a Time | US$6,246,500 | |
| 13 | March 28, 2021 | Evangelion: 3.0+1.0 Thrice Upon a Time | US$4,819,800 | |
| 14 | April 4, 2021 | Evangelion: 3.0+1.0 Thrice Upon a Time | US$2,901,300 | |
| 15 | April 11, 2021 | Evangelion: 3.0+1.0 Thrice Upon a Time | US$2,421,000 | |
| 16 | April 18, 2021 | Detective Conan: The Scarlet Bullet | US$14,834,300 | |
| 17 | April 25, 2021 | Detective Conan: The Scarlet Bullet | US$7,188,400 | |
| 18 | May 2, 2021 | Detective Conan: The Scarlet Bullet | US$4,135,400 | |
| 19 | May 9, 2021 | Detective Conan: The Scarlet Bullet | US$1,626,600 | |
| 20 | May 16, 2021 | Beautiful Lure | US$1,281,600 | |
| 21 | May 23, 2021 | A Morning of Farewell | US$1,361,000 | |
| 22 | May 30, 2021 | Rurouni Kenshin: The Final | US$1,039,300 | |
| 23 | June 6, 2021 | Rurouni Kenshin: The Beginning | US$3,068,100 | |
| 24 | June 13, 2021 | Evangelion: 3.0+1.0 Thrice Upon a Time | US$2,425,200 | In attendance |
| 24 | June 13, 2021 | Mobile Suit Gundam: Hathaway | US$3,017,600 | In gross |
| 25 | June 20, 2021 | The Fable: The Killer Who Doesn't Kill | US$2,120,300 | |
| 26 | June 27, 2021 | The Fable: The Killer Who Doesn't Kill | US$1,301,300 | |
| 27 | July 4, 2021 | Godzilla vs. Kong | US$4,180,200 | |
| 28 | July 11, 2021 | Tokyo Revengers | US$4,791,200 | |
| 29 | July 18, 2021 | Belle | US$6,182,700 | |
| 30 | July 25, 2021 | Belle | US$4,747,500 | |
| 31 | August 1, 2021 | Belle | US$3,328,000 | |
| 32 | August 8, 2021 | F9 | US$5,009,000 | |
| 33 | August 15, 2021 | F9 | US$3,513,100 | |
| 34 | August 22, 2021 | F9 | US$1,664,600 | In gross |
| 34 | August 22, 2021 | Kaguya-sama Final: Love Is War | US$1,491,800 | In attendance |
| 35 | August 29, 2021 | My Hero Academia: World Heroes' Mission | US$1,857,800 | |
| 36 | September 5, 2021 | Shang-Chi and the Legend of the Ten Rings | US$1,976,300 | |
| 37 | September 12, 2021 | My Hero Academia: World Heroes' Mission | US$1,407,300 | |
| 38 | September 19, 2021 | Masquerade Night | US$4,890,900 | |
| 39 | September 26, 2021 | Masquerade Night | US$3,141,200 | |
| 40 | October 3, 2021 | No Time to Die | US$3,880,100 | |
| 41 | October 10, 2021 | No Time to Die | US$2,571,000 | |
| 42 | October 17, 2021 | Baragaki: Unbroken Samurai | US$1,871,900 | |
| 43 | October 24, 2021 | Tropical-Rouge! Pretty Cure the Movie: The Snow Princess and the Miraculous Ring! | US$1,495,600 | |
| 44 | October 31, 2021 | Sword Art Online Progressive: Aria of a Starless Night | US$3,055,800 | |
| 45 | November 7, 2021 | Eternals | US$2,590,000 | |
| 46 | November 14, 2021 | Sumikko Gurashi The Movie: A Magical Child of the Blue Moonlit Night | US$1,351,500 | |
| 47 | November 21, 2021 | Sumikko Gurashi The Movie: A Magical Child of the Blue Moonlit Night | US$1,076,600 | |
| 48 | November 28, 2021 | Arashi Anniversary Tour 5×20 Film: Record of Memories | US$3,899,700 | |
| 49 | December 5, 2021 | Venom: Let There Be Carnage | US$4,029,700 | |
| 50 | December 12, 2021 | Your Turn to Kill: The Movie | US$3,011,300 | |
| 51 | December 19, 2021 | The Matrix Resurrections | US$2,644,500 | |
| 52 | December 26, 2021 | Jujutsu Kaisen 0 | US$14,170,100 | |

## Highest-grossing films

Highest-grossing films of 2021 in Japan :
| Rank | Title | Gross |
| 1 | Evangelion: 3.0+1.0 Thrice Upon a Time | ¥10.28 billion ($93.67 million) |
| 2 | Detective Conan: The Scarlet Bullet | ¥7.65 billion ($69.7 million) |
| 3 | Belle | ¥6.60 billion ($60.14 million) |
| 4 | Arashi Anniversary Tour 5×20 Film: Record of Memories | ¥4.55 billion ($41.46 million) |
| 5 | Tokyo Revengers | ¥4.50 billion ($41 million) |
| 6 | Rurouni Kenshin: The Final | ¥4.35 billion ($39.64 million) |
| 7 | The Untold Tale of the Three Kingdoms | ¥4.03 billion ($36.72 million) |
| 8 | We Made a Beautiful Bouquet | ¥3.81 billion ($34.72 million) |
| 8 | Masquerade Night | ¥3.81 billion ($34.72 million) |
| 10 | F9 | ¥3.67 billion ($33.44 million) |