# List of South Korean films of 2021

The following is a list of South Korean films released in 2021.

## Box office

The highest-grossing South Korean films released in 2021, by domestic box office gross revenue, are as follows:
Highest-grossing films released in 2021 :
| Rank | Title | Distributor | Domestic gross |
| 1 | Escape from Mogadishu | Lotte Entertainment | $28,955,409 |
| 2 | Sinkhole | Showbox | $17,926,756 |
| 3 | Hostage: Missing Celebrity | Next Entertainment World | $13,058,426 |
| 4 | On the Line | CJ Entertainment | $11,751,610 |
| 5 | Hard Hit | CJ Entertainment | $7,627,011 |
| 6 | The Medium | Showbox | $7,238,857 |
| 7 | Spiritwalker | Megabox JoongAng PlusM | $6,611,996 |
| 8 | Miracle: Letters to the President | Lotte Entertainment | $5,559,237 |
| 9 | Romance Without Love | CJ Entertainment | $5,128,145 |
| 10 | Perhaps Love | Next Entertainment World | $4,345,842 |

## Released
### January–March

| Opening | Opening | English title | Native title | Director(s) | Cast |
| J A N U A R Y | 1 | What Happened to Mr. Cha? | 차인표 | Kim Dong-kyu | Cha In-pyo, Song Jae-ryong |
| J A N U A R Y | 6 | Finding Angel | 천사는 바이러스 | Kim Sung-joon | Lee Young-ah, Park Sung-il, Jeon Moo-song, Moon Sook |
| J A N U A R Y | 14 | Cute Man | 귀여운 남자 | Kim Jung-wook | Shin Min-jae, Lee Jin-ri, Hwang Jung-yoon, Hong Ha-na-im |
| J A N U A R Y | 14 | Loop Dreams | 요요현상 | Go Du-hyun | Moon Hyun-woong, Kwak Dong-gun, Yoon Jong-gi, Lee Dae-yeol, Lee Dong-hoon |
| J A N U A R Y | 14 | Sword of Sarasen | 사라센의 칼 | Lim Jae-young | Shin Ji-soo, Park Myung-shin, Kim Feel, Park Song-tek |
| J A N U A R Y | 14 | Little Bird | 작은새 | Kim Tae-kyun | Lee Ki-hyuk, Lee Hye-ah |
| J A N U A R Y | 21 | Croissant | 크루아상 | Cho Sung-kyu | Nam Bo-ra, Hyuk |
| J A N U A R Y | 21 | Today, Together 2 | 오늘, 우리2 | Lee Joon-seop, Lee Na-yeon, Yang Jae-joon, Yeo Jang-cheon | Ki Joo-bong, Park Se-jun, Shin Ji-yi, Son Jung-yoon |
| J A N U A R Y | 21 | My Big Mama’s Crazy Ride | 큰엄마의 미친봉고 | Baek Seung-hwan | Jung Young-joo, Kim Ga-eun, Hwang Seok-jeong, Yu Seong-ju, Jo Dal-hwan, Jung Dae-gwan |
| J A N U A R Y | 21 | Bike Guys | 바이크 원정대: 인 이탈리아 | Go Young-jo | Song Jae-hee, ISU, J.Yoon, Ryuseok, Kim Sun-bin |
| J A N U A R Y | 27 | Three Sisters | 세자매 | Lee Seung-won | Moon So-ri, Kim Sun-young, Jang Yoon-ju |
| J A N U A R Y | 28 | I Don’t Fire Myself | 나는 나를 해고하지 않는다 | Lee Tae-gyeom | Yoo Da-in, Oh Jung-se |
| J A N U A R Y | 28 | The ABCs of Our Relationship | 관계의 가나다에 있는 우리는 | Lee In-eui | Eun Hae-seong, Oh Ha-nee, Lee Seo-yoon, Jang Joon-hwi, Kim Ji-na |
| J A N U A R Y | 28 | Rule of the Game: Human Hunting | 게임의 법칙: 인간사냥 | Lee Soo-sung | Kim Sung-soo, Jo Kyung-hoon, Seo Young |
| F E B R U A R Y | 3 | Stress Zero | 스트레스 제로 | Lee Dae-hee | Im Chae-heon, Yoo Dong-kyun, Kim Seung-tae |
| F E B R U A R Y | 3 | There Is an Alien Here | 이 안에 외계인이 있다 | Choi Eun-jong | Jo Byeong-kyu, Bae Noo-ri, Lee Hyun-woong, Tae Hang-ho, Yoon Jin-young |
| F E B R U A R Y | 5 | Space Sweepers | 승리호 | Jo Sung-hee | Song Joong-ki, Kim Tae-ri, Jin Seon-kyu, Yoo Hae-jin |
| F E B R U A R Y | 10 | I | 아이 | Kim Hyun-tak | Kim Hyang-gi, Ryu Hyun-kyung, Yeom Hye-ran |
| F E B R U A R Y | 10 | New Year Blues | 새해전야 | Hong Ji-young | Kim Kang-woo, Yoo In-na, Yoo Yeon-seok, Lee Yeon-hee, Lee Dong-hwi, Chen Duling, Yeom Hye-ran, Choi Soo-young |
| F E B R U A R Y | 17 | Mission: Possible | 미션 파서블 | Kim Hyung-joo | Lee Sun-bin, Kim Young-kwang |
| F E B R U A R Y | 17 | Double Patty | 더블패티 | Baek Seung-hwan | Shin Seung-ho, Irene |
| F E B R U A R Y | 18 | Black Light | 빛과 철 | Bae Jong-dae | Yeom Hye-ran, Kim Si-eun, Park Ji-hu |
| F E B R U A R Y | 24 | Go Back | 고백 | Seo Eun-young | Park Ha-sun, Ha Yoon-kyung, Kim Woo-gyum, Gam So-hyun, Jung Eun-pyo |
| M A R C H | 24 | The Box | 더 박스 | Yang Jung-woong | Park Chanyeol, Jo Dal-hwan |
| M A R C H | 31 | The Book of Fish | 자산어보 | Lee Joon-ik | Sul Kyung-gu, Byun Yo-han |

### April–June

| Opening | Opening | English title | Native title | Director(s) | Cast |
| A P R I L | 9 | Night in Paradise | 낙원의 밤 | Park Hoon-jung | Uhm Tae-goo, Jeon Yeo-been, Cha Seung-won |
| A P R I L | 15 | Seo Bok | 서복 | Lee Yong-ju | Gong Yoo, Park Bo-gum |
| A P R I L | 21 | Recalled | 내일의 기억 | Seo Yoo-min | Seo Yea-ji, Kim Kang-woo, Yeom Hye-ran |
| A P R I L | 28 | Waiting for Rain | 비와 당신의 이야기 | Jo Jin-mo | Kang Ha-neul, Chun Woo-hee, Kang So-ra |
| M A Y | 19 | Aloners | 혼자 사는 사람들 | Hong Sung-eun | Gong Seung-yeon, Jeong Da-eun, Seo Hyun-woo, Park Jeong-hak |
| M A Y | 26 | Pipeline | 파이프라인 | Yoo Ha | Seo In-guk, Lee Soo-hyuk, Eum Moon-suk |
| M A Y | 27 | Introduction | 인트로덕션 | Hong Sang-soo | Shin Seok-ho, Park Mi-so, Kim Min-hee |
| J U N E | 4 | Sweet & Sour | 새콤달콤 | Lee Gye-byeok | Krystal Jung, Chae Soo-bin, Jang Ki-yong |
| J U N E | 23 | Hard Hit | 발신제한 | Kim Chang-ju | Jo Woo-jin, Lee Jae-in, Ji Chang-wook |
| J U N E | 30 | Midnight | 미드나이트 | Kwon Oh-seung | Jin Ki-joo, Wi Ha-joon, Kim Hye-yoon |

### July–September

| Opening | Opening | English title | Native title | Director(s) | Cast |
| J U L Y | 2 | The 8th Night | 제8일의 밤 | Kim Tae-hyung | Lee Sung-min, Park Hae-joon, Kim Yoo-jung |
| J U L Y | 14 | The Medium | 랑종 | Banjong Pisanthanakun | Narilya Gulmongkolpech, Sawanee Utoomma, Sirani Yankittikan, Yasaka Chaisorn |
| J U L Y | 28 | Escape from Mogadishu | 모가디슈 | Ryoo Seung-wan | Kim Yoon-seok, Jo In-sung |
| J U L Y | 28 | The Cursed: Dead Man's Prey | 방법: 재차의 | Kim Yong-wan | Uhm Ji-won, Jung Ji-so, Jung Moon-sung, Kim In-kwon |
| A U G U S T | 11 | Sinkhole | 싱크홀 | Kim Ji-hoon | Cha Seung-won, Kim Sung-kyun, Lee Kwang-soo, Kim Hye-jun |
| A U G U S T | 18 | Hostage: Missing Celebrity | 인질 | Pil Kam-sung | Hwang Jung-min |
| A U G U S T | 25 | Guimoon: The Lightless Door | 귀문 | Shim Duck-geun | Kim Kang-woo, Kim So-hye, Lee Jung-hyung |
| S E P T E M B E R | 1 | Snowball | 최선의 삶 | Lee Woo-jeong | Bang Min-ah, Shim Dal-gi, Han Sung-min |
| S E P T E M B E R | 9 | Show Me the Ghost | 쇼미더고스트 | Kim Eun-kyoung | Han Seung-yeon, Kim Hyun-mok, Hong Seung-bum |
| S E P T E M B E R | 15 | The Miracle | 기적 | Lee Jang-hoon | Park Jung-min, Im Yoon-ah, Lee Sung-min |
| S E P T E M B E R | 15 | On the Line | 보이스 | Kim Gok, Kim Sun | Byun Yo-han, Kim Mu-yeol, Kim Hee-won |

### October–December

| Opening | Opening | English title | Native title | Director(s) | Cast |
| O C T O B E R | 6 | F20 | F20 | Hong Eun-mi | Jang Young-nam, Kim Jung-young, Lee Ji-ha |
| N O V E M B E R | 10 | Tomb of the River | 강릉 | Yoon Young-bin | Jang Hyuk, Yu Oh-seong |
| N O V E M B E R | 17 | Perhaps Love | 장르만 로맨스 | Jo Eun-ji | Ryu Seung-ryong, Oh Na-ra, Kim Hee-won |
| N O V E M B E R | 24 | Romance Without Love | 연애 빠진 로맨스 | Jeong Ga-young | Jeon Jong-seo, Son Suk-ku, Gong Min-jung |
| N O V E M B E R | 24 | Spiritwalker | 유체이탈자 | Yoon Jae-geun | Yoon Kye-sang, Park Yong-woo, Lim Ji-yeon |
| D E C E M B E R | 8 | Monsta X: The Dreaming | 몬스타엑스: 더 드리밍 | Oh Yoon-dong, Sung Shin-hyo | Son Hyun-woo, Lee Min-hyuk, Yoo Ki-hyun, Chae Hyung-won, Lee Joo-heon, Im Chang-kyun |
| D E C E M B E R | 29 | A Year-End Medley | 해피 뉴 이어 | Kwak Jae-yong | Han Ji-min, Lee Dong-wook, Kang Ha-neul, Im Yoon-ah |