# List of 2021 box office number-one films in South Korea

The following is a list of 2021 box office number-one films in South Korea. When the number-one film in gross is not the same as the number-one film in admissions, both are listed.
| # | Date | Film | Gross |
| 1 | January 3, 2021 | Wonder Woman 1984 | $599,498 |
| 2 | January 10, 2021 | Wonder Woman 1984 | $231,544 |
| 3 | January 17, 2021 | Wonder Woman 1984 | $133,169 |
| 4 | January 24, 2021 | Soul | $2,581,160 |
| 5 | January 31, 2021 | Soul | $2,322,301 |
| 6 | February 7, 2021 | Soul | $1,728,495 |
| 7 | February 14, 2021 | Soul | $1,842,091 |
| 8 | February 21, 2021 | Mission: Possible | $1,102,142 |
| 9 | February 28, 2021 | Demon Slayer: Kimetsu no Yaiba the Movie: Mugen Train | $745,938 |
| 10 | March 7, 2021 | Minari | $1,676,807 |
| 11 | March 14, 2021 | Minari | $1,089,782 |
| 12 | March 21, 2021 | Minari | $1,095,606 |
| 13 | March 28, 2021 | Godzilla vs. Kong | $2,469,206 |
| 13 | April 4, 2021 | Godzilla vs. Kong | $1,304,425 |
| 14 | April 11, 2021 | The Book of Fish | $449,858 |
| 15 | April 18, 2021 | Seo Bok | $1,803,438 |
| 16 | April 25, 2021 | Recalled | $1,097,642 |
| 17 | May 2, 2021 | Waiting for Rain | $1,402,942 |
| 18 | May 9, 2021 | The Croods: A New Age | $1,305,125 |
| 19 | May 16, 2021 | Spiral: From the Book of Saw | $782,444 |
| 20 | May 23, 2021 | Fast & Furious 9 THE FAST SAGA | $9,833,610 |
| 21 | May 30, 2021 | Fast & Furious 9 THE FAST SAGA | $15,188,664 |
| 22 | June 6, 2021 | The Conjuring: The Devil Made Me Do It | $3,126,611 |
| 23 | June 13, 2021 | Cruella | $8,286,922 |
| 24 | June 20, 2021 | A Quiet Place Part II | $3,355,361 |
| 25 | June 27, 2021 | Hard Hit | $2,979,025 |
| 26 | July 4, 2021 | Hard Hit | $6,151,898 |
| 27 | July 11, 2021 | Black Widow | $12,104,742 |
| 28 | July 18, 2021 | Black Widow | $19,027,461 |
| 29 | July 25, 2021 | The Boss Baby: Family Business | $2,829,313 |
| 30 | August 1, 2021 | Escape from Mogadishu | $6,525,098 |
| 31 | August 8, 2021 | Escape from Mogadishu | $14,466,386 |
| 32 | August 15, 2021 | Sinkhole | $7,771,401 |
| 33 | August 22, 2021 | Hostage: Missing Celebrity | $5,407,561 |
| 34 | August 29, 2021 | Hostage: Missing Celebrity | $9,533,413 |
| 35 | September 5, 2021 | Shang-Chi and the Legend of the Ten Rings | $6,630,248 |
| 36 | September 12, 2021 | Shang-Chi and the Legend of the Ten Rings | $10,629,324 |
| 37 | September 19, 2021 | On the Line | $2,917,364 |
| 38 | September 26, 2021 | On the Line | $7,983,339 |
| 39 | October 3, 2021 | No Time to Die | $4,550,023 |
| 40 | October 10, 2021 | No Time to Die | $8,013,364 |
| 41 | October 17, 2021 | Venom: Let There Be Carnage | $9,241,421 |
| 42 | October 24, 2021 | Venom: Let There Be Carnage | $14,014,916 |
| 43 | October 31, 2021 | Dune | $6,841,301 |
| 44 | November 7, 2021 | Eternals | $14,311,287 |
| 45 | November 14, 2021 | Eternals | $21,935,423 |
| 46 | November 21, 2021 | Perhaps Love | $2,874,128 |
| 47 | November 28, 2021 | Spiritwalker | $2,959,958 |
| 48 | December 5, 2021 | Spiritwalker | $5,186,779 |
| 49 | December 12, 2021 | Romance Without Love | $4,575,880 |
| 50 | December 19, 2021 | Spider-Man: No Way Home | $23,522,733 |
| 51 | December 26, 2021 | Spider-Man: No Way Home | $41,057,785 |
| 52 | January 2, 2022 | Spider-Man: No Way Home | $51,217,511 |

## Highest-grossing films

International film  South Korean film
Highest-grossing films of 2021 :
| Rank | Title | Distributor | Domestic gross |
| 1 | Spider-Man: No Way Home | Sony | US$46,648,679 |
| 2 | Escape from Mogadishu | Lotte Entertainment | $28,955,409 |
| 3 | Eternals | Disney | $26,583,111 |
| 4 | Black Widow | Disney | $25,132,866 |
| 5 | F9 | Universal Pictures | $18,483,157 |
| 6 | Sinkhole | Showbox | $17,777,858 |
| 7 | Demon Slayer: Kimetsu no Yaiba – The Movie: Mugen Train | Toho | $17,163,308 |
| 8 | Venom: Let There Be Carnage | Sony | $17,545,295 |
| 9 | Soul | Disney | $15,816,298 |
| 10 | Cruella | Disney | $15,997,401 |