26 Korean films of 2020 ranked by box office. #1: Peninsula ($42.7 million).
| # | Film | Lead | Director | Budget | Box office | Multiple |
|---|---|---|---|---|---|---|
| 1 | Peninsula | Gang Dong-won | Yeon Sang-ho | $16 million | $42.7 million | 2.67x |
| 2 | The Man Standing Next | Lee Byung-hun | Woo Min-ho | $18 million | $34.7 million | 1.93x |
| 3 | Hero | Chung Sung-hwa | Yoon Je-kyoon | $24.8 million | ||
| 4 | Hitman: Agent Jun | Kwon Sang-woo | ₩9 billion | $17.6 million | ||
| 5 | Minari | Steven Yeun | Lee Isaac Chung | $2 million | $15.5 million | 7.75x |
| 6 | #Alive | Yoo Ah-in | Cho Il-hyeong | $14.7 million | ||
| 7 | Pawn | Sung Dong-il | Kang Dae-gyu | $13.6 million | ||
| 8 | Samjin Company English Class | Ko A-sung | Lee Jong-pil | $12.8 million | ||
| 9 | Collectors | Lee Je-hoon | Park Jung-bae | $12.6 million | ||
| 10 | Honest Candidate | Ra Mi-ran | Jang Yu-jeong | $10.6 million | ||
| 11 | Secret Zoo | Ahn Jae-hong | Son Jae-gon | ₩10 billion | $9.5 million | |
| 12 | The Closet | Kim Kwang-bin | $9.2 million | |||
| 13 | Innocence | Bae Jong-ok | Park Sang-hyeon | ₩5.7 billion | $6.7 million | |
| 14 | Beasts Clawing at Straws | Jeon Do-yeon | Kim Yong-hoon | $5.8 million | ||
| 15 | Mr. Zoo: The Missing VIP | Lee Sung-min | Kim Tae-yoon | $4.4 million | ||
| 16 | Intruder | Song Ji-hyo | Sohn Won-pyung | $4.2 million | ||
| 17 | Voice of Silence | Yoo Ah-in | Hong Eui-jeong | $1.1 million | $3.2 million | 2.91x |
| 18 | Best Friend | Jung Woo | Lee Hwan-kyung | $2.7 million | ||
| 19 | The Day I Died: Unclosed Case | Park Ji-wan | $2 million | |||
| 20 | Josée | Han Ji-min | Kim Jong-kwan | $1.7 million | ||
| 21 | The Swordsman | Jang Hyuk | Choi Jae-hoon | $1.5 million | ||
| 22 | Me and Me | Cho Jin-woong | Jeong Jin-yeong | $1.2 million | ||
| 23 | Diva | Shin Min-a | Jo Seul-yeah | $783,081 | ||
| 24 | Beyond That Mountain | J-STAR | $588,909 | |||
| 25 | More Than Family | Krystal Jung | Choi Ha Na | $190,327 | ||
| 26 | Lucky Chan-sil | Kang Mal-Geum | Kim Cho-hee | $177,353 |
Figures are shown in the currency they were reported in (Wikipedia, Wikidata or TMDB); no conversion.