29 Korean films of 2021 ranked by box office. #1: Escape from Mogadishu ($29.9 million).
| # | Film | Lead | Director | Budget | Box office | Multiple |
|---|---|---|---|---|---|---|
| 1 | Escape from Mogadishu | Kim Yun-seok | Ryoo Seung-wan | $18.3 million | $29.9 million | 1.63x |
| 2 | Sinkhole | Cha Seung-won | Kim Ji-hun | ₩15 billion | $18.8 million | |
| 3 | Hostage: Missing Celebrity | Pil Gam-seong | ₩8 billion | $13.1 million | ||
| 4 | On the Line | Byun Yo-han | $12.5 million | |||
| 5 | Seo Bok | Gong Yoo | Lee Yong-ju | $6.8 million | ||
| 6 | Hard Hit | Jo Woo-jin | Kim Chang-ju | ₩7 billion | $6.7 million | |
| 7 | Spiritwalker | Yoon Kye-sang | Yoon Jae-keun | $6.6 million | ||
| 8 | The Devil's Deal | Cho Jin-woong | Lee Won-tae | $5.7 million | ||
| 9 | Miracle: Letters to the President | Park Jeong-min | Lee Jang-hoon | $5.4 million | ||
| 10 | Nothing Serious | Jeong Ga-young | $5.2 million | |||
| 11 | Blackpink: The Movie | Su Yee Jung | $4.8 million | |||
| 12 | Perhaps Love | Cho Eun-ji | $4.3 million | |||
| 13 | Mission Possible | Kim Young-kwang | $3.5 million | |||
| 14 | Waiting for Rain | Kang Ha-neul | Jo Jin-mo | $3.2 million | ||
| 15 | Tomb of the River | Yun Yeong-bin | $2.7 million | |||
| 16 | The Book of Fish | Sul Kyung-gu | Lee Joon-ik | $2.6 million | ||
| 17 | Recalled | Seo Yea-ji | Seo You-min | $2.6 million | ||
| 18 | A Year-End Medley | Kwak Jae-yong | $1.9 million | |||
| 19 | The Cursed: Dead Man’s Prey | Uhm Ji-won | Kim Yong-wan | $1.3 million | ||
| 20 | Pipeline | Seo In-guk | Yoo Ha | $1 million | ||
| 21 | The Box | $840,000 | ||||
| 22 | Midnight | Jin Ki-joo | Kwon Oh-seung | $814,018 | ||
| 23 | Chun Tae-il: A Flame That Lives On | Hong Joon-pyo | $809,733 | |||
| 24 | Guimoon: The Lightless Door | Kim Kang-woo | $676,659 | |||
| 25 | Three Sisters | Moon So-ri | Lee Seung-Won | $384,717 | ||
| 26 | I | $219,555 | ||||
| 27 | Aloners | Hong Sung-eun | $95,848 | |||
| 28 | Snowball | Bang Min-ah | Lee Woo-jung | $78,076 | ||
| 29 | In Front of Your Face | Hong Sang-soo | $41,279 |
Figures are shown in the currency they were reported in (Wikipedia, Wikidata or TMDB); no conversion.