40 Korean films of 2023 ranked by box office. #1: 12.12: The Day ($97.5 million).
| # | Film | Lead | Director | Budget | Box office | Multiple |
|---|---|---|---|---|---|---|
| 1 | 12.12: The Day | Hwang Jung-min | Kim Sung-su | ₩23 billion | $97.5 million | |
| 2 | The Roundup: No Way Out | Ma Dong-seok | Lee Sang-yong | $83.4 million | ||
| 3 | Past Lives | Greta Lee | Celine Song | $12 million | $42.7 million | 3.56x |
| 4 | Smugglers | Kim Hye-soo | Ryoo Seung-wan | $15.8 million | $36.9 million | 2.34x |
| 5 | Noryang | Kim Han-min | $34.2 million | |||
| 6 | Concrete Utopia | Lee Byung-hun | Um Tae-hwa | $30.1 million | ||
| 7 | Love Reset | Kang Ha-neul | Da-Jung Nam | ₩8 billion | $18.4 million | |
| 8 | Dr. Cheon and Lost Talisman | Gang Dong-won | Kim Seong-sik | $14.6 million | ||
| 9 | The Point Men | Hwang Jung-min | Im Sun-rye | $13.5 million | ||
| 10 | Sleep | Jung Yu-mi | Jason Yu | $11.1 million | ||
| 11 | Honey Sweet | Yoo Hae-jin | Lee Han | $10.8 million | ||
| 12 | Dream | Park Seo-joon | Lee Byeong-heon | $8.3 million | ||
| 13 | Ransomed | Ha Jung-woo | Kim Seong-hun | $8.1 million | ||
| 14 | Road to Boston | Ha Jung-woo | Kang Je-gyu | $7.2 million | ||
| 15 | A Normal Family | Sul Kyung-gu | Hur Jin-ho | $6.4 million | ||
| 16 | The Childe | Kim Seon-ho | Park Hoon-jung | $6 million | ||
| 17 | Rebound | Ahn Jae-hong | Chang Hang-jun | $5.3 million | ||
| 18 | Phantom | Sul Kyung-gu | Hae yeong I | $5.2 million | ||
| 19 | Our Season | Kim Hae-suk | $3.7 million | |||
| 20 | The Breaking Ice | Zhou Dongyu | Anthony Chen | $3.5 million | ||
| 21 | Switch | Kwon Sang-woo | Ma Dae-Yoon | $3.1 million | ||
| 22 | Single in Seoul | Lee Dong-wook | Park Beom-su | $3 million | ||
| 23 | Count | $2.9 million | ||||
| 24 | Soulmate | Kim Da-mi | Min Yong-geun | $2.5 million | ||
| 25 | Ghost Station | $2.3 million | ||||
| 26 | Cobweb | Song Kang-ho | Kim Ji-woon | $2.1 million | ||
| 26 | Brave Citizen | Park Jin-pyo | $2.1 million | |||
| 28 | One Win | Song Kang-ho | Shin Yeon-shick | $1.9 million | ||
| 29 | Next Sohee | Kim Si-eun | July Jung | $1.4 million | ||
| 29 | Killing Romance | Lee Hanee | Lee Won-suk | $1.4 million | ||
| 31 | My Heart Puppy | Yoo Yeon-seok | Jason Kim | ₩3 billion | $1.3 million | |
| 32 | A Man of Reason | Jung Woo-sung | Jung Woo-sung | $941,592 | ||
| 33 | It’s Okay! | Lee Re | Kim Hye-young | $691,275 | ||
| 34 | Gangnam Zombie | $394,420 | ||||
| 35 | Because I Hate Korea | Ko A-sung | Jang Kun-jae | $347,051 | ||
| 36 | My Worst Neighbor | $142,299 | ||||
| 37 | The Moon | Kim Yong-hwa | $20 million | $92,718 | ||
| 38 | Love My Scent | Yoon Shi-yoon | $88,296 | |||
| 39 | A Letter from Kyoto | $44,056 | ||||
| 40 | The Assassin | Shin Hyun-jun | Kwak Jeong-deok | $25,282 |
Figures are shown in the currency they were reported in (Wikipedia, Wikidata or TMDB); no conversion.