42 Korean films of 2009 ranked by box office. #1: Tidal Wave ($74.4 million).
| # | Film | Lead | Director | Budget | Box office | Multiple |
|---|---|---|---|---|---|---|
| 1 | Tidal Wave | Yoon Je-kyoon | $16 million | $74.4 million | 4.65x | |
| 2 | Take Off | Kim Yong-hwa | $52.1 million | |||
| 3 | Jeon Woo Chi | Choi Dong-hun | $12 million | $38.7 million | 3.23x | |
| 4 | My Girlfriend Is an Agent | Terra Shin | $21.1 million | |||
| 5 | Mother | Bong Joon-ho | $5 million | $17.1 million | 3.42x | |
| 6 | Running Turtle | Lee Yeon-woo | $16.8 million | |||
| 7 | Good Morning President | Jang Jin | $16.1 million | |||
| 8 | Closer to Heaven | Park Jin-pyo | $3.3 million | $13.3 million | 4.03x | |
| 9 | Goodbye Mom | Jeong Gi-hun | $12.6 million | |||
| 10 | The Sword with No Name | Kim Yong-gyun | $10.9 million | |||
| 11 | Chaw | Shin Jung-won | $7 million | $10.8 million | 1.54x | |
| 12 | Private Eye | Park Dae-min | $10.1 million | |||
| 13 | City of Damnation | Kim Dong-won | $7.5 million | |||
| 14 | Secret | Yoon Jae-gu | $6.9 million | |||
| 15 | White Night | Park Shin-woo | $6.3 million | |||
| 16 | Insadong Scandal | Park Hee-gon | $6.2 million | |||
| 17 | More Than Blue | Won Tae-yeon | $2 million | $4 million | 2.00x | |
| 18 | Marine Boy | Jong-seok Yoon | $3.9 million | |||
| 19 | Handphone | Kim Han-min | $3.9 million | |||
| 20 | Castaway on the Moon | Lee Hae-jun | $5 million | $3.7 million | 0.74x | |
| 21 | Actresses | E J-yong | $3.4 million | |||
| 22 | A Blood Pledge | Jong-yong Lee | $3.4 million | |||
| 23 | The Case of Itaewon Homicide | Hong Ki-seon | $3.3 million | |||
| 24 | A Million | Cho Min-ho | $2.5 million | |||
| 25 | Five Senses of Eros | Min Kyu-dong | $2.4 million | |||
| 26 | Living Death | Lee Yong-ju | $1.4 million | |||
| 27 | City of Fathers | Ji-Won Park | $1 million | |||
| 28 | Searching for the Elephant | Jeong Seung-gu | $915,943 | |||
| 29 | Paju | Park Chan-ok | $818,676 | |||
| 30 | Breathless | Yang Ik-june | $686,703 | |||
| 31 | The Naked Kitchen | Hong Ji-yeong | $638,181 | |||
| 32 | Heaven's Postman | Lee Hyung-min | $543,710 | |||
| 33 | 4th Period Mystery | Lee Sang-yong | $360,944 | |||
| 34 | The Relation of Face, Mind and Love | Lee Jang-soo | $336,919 | |||
| 35 | Kill Me | $317,593 | ||||
| 36 | Like You Know It All | Hong Sang-soo | $100,000 | $208,867 | 2.09x | |
| 37 | A Brand New Life | Ounie Lecomte | $167,776 | |||
| 38 | Flight | Park Jeong-hun | $141,392 | |||
| 39 | Triangle | Ji Young-soo | $10,655 | |||
| 40 | The Red Chapel | Mads Brügger | $6,196 | |||
| 41 | Grandmother's Flower | Mun Jeong-hyeon | $6,104 | |||
| 42 | After the Banquet | Yun-cheul Kim | $1,240 |
Figures are shown in the currency they were reported in (Wikipedia, Wikidata or TMDB); no conversion.