The highest-grossing South Korean films released in 2018, by domestic box office gross revenue, are as follows:[2]
| Released | English title | Native title | Director(s) | Cast |
|---|
| Bittersweet Brew | Korean: 스타박'스 다방 | Lee Sang-woo | Baek Sung-hyun, Lee Sang-ah, Seo Shin-ae |
| Brothers in Heaven | Korean: 돌아와요 부산항애 | | Sung Hoon, Jo Han-sun |
| Keys to the Heart | Korean: 그것만이 내 세상 | Choi Sung-hyun | Lee Byung-hun, Youn Yuh-jung, Park Jung-min |
| Be-Bop-A-Lula | Korean: 비밥바룰라 | Lee Seong-jae | |
| The Discloser | Korean: 1급기밀 | Hong Ki-seon | Kim Sang-kyung, Kim Ok-bin, Choi Moo-sung |
| Jamsil | Korean: 누에치던 방 | Lee Wan-min | Lee Sang-hee, Hong Seung-yi, Kim Sae-byuk |
| Psychokinesis | Korean: 염력 | Yeon Sang-ho | Ryu Seung-ryong, Shim Eun-kyung, Park Jung-min |
| | Korean: 조선명탐정: 흡혈괴마의 비밀 | Kim Seok-yoon | Kim Myung-min, Oh Dal-su, Kim Ji-won |
| Turning Mecards W: Secret of Bandain | Korean: 터닝메카드W: 반다인의 비밀 특별판 | Hong Heon-pyo | Yoon Mi-na, Lee Hyun-jin |
| Golden Slumber | Korean: 골든 슬럼버 | Noh Dong-seok | Kang Dong-won, Kim Eui-sung, Han Hyo-joo, Kim Sung-kyun, Kim Dae-myung |
| Korean: 흥부 | Cho Geun-hyun | Jung Woo, Kim Joo-hyuk, Jung Jin-young, Jung Hae-in |
| In Between Seasons | Korean: 환절기 | Lee Dong-eun | Bae Jong-ok, Lee Won-geun, Park Won-sang |
| The Princess and the Matchmaker | Korean: 궁합 | Hong Chang-pyo | Shim Eun-kyung, Lee Seung-gi, Kim Sang-kyung, Yeon Woo-jin, Kang Min-hyuk |
| Little Forest | Korean: 리틀 포레스트 | Yim Soon-rye | Kim Tae-ri, Ryu Jun-yeol, Jin Ki-joo, Moon So-ri |
| Gate | Korean: 게이트 | Shin Jai-ho | Jung Ryeo-won, Im Chang-jung, Lee Geung-young |
| The Vanished | Korean: 사라진 밤 | Lee Chang-hee | Kim Sang-kyung, Kim Kang-woo, Kim Hee-ae |
| Wretches | Korean: 괴물들 | Kim Baek-joon | Lee Won-geun, Lee Yi-kyung, Park Kyu-young |
| Be with You | Korean: 지금 만나러 갑니다 | Lee Jang-hoon | So Ji-sub, Son Ye-jin, Kim Ji-hwan |
| Cheese in the Trap | Korean: 치즈인더트랩 | Kim Jae-young | Park Hae-jin, Oh Yeon-seo, Park Ki-woong |
| A Field Day | Korean: 운동회 | Kim Jin-tae | Kim Su-an, Yang Ji-woong, Lee Jung-bi |
| Microhabitat | Korean: 소공녀 | Jeon Go-woon | Esom, Ahn Jae-hong |
| Taklamakan | Korean: 타클라마칸 | Ko Eun-ki | Jo Sung-ha, Ha Yoon-kyung |
| | Korean: 곤지암 | Jung Bum-shik | Wi Ha-joon, Park Ji-hyun, Oh Ah-yeon, Moon Ye-won |
| Seven Years of Night | Korean: 7년의 밤 | Choo Chang-min | Ryu Seung-ryong, Jang Dong-gun |
| Meet the Memories - First Love | Korean: 기억을 만나다 | Goo Bum-seok | Seo Ye-ji, Kim Jung-hyun |
| Stand by Me | Korean: 덕구 | Bang Soo-in | Lee Soon-jae, Jung Ji-hoon, Jang Gwang |
| What a Man Wants | Korean: 바람 바람 바람 | Lee Byung-hun | Lee Sung-min, Shin Ha-kyun, Song Ji-hyo, Lee El |
| A Tiger in Winter | Korean: 호랑이보다 무서운 겨울손님 | Lee Kwang-kuk | Go Hyun-jung, Lee Jin-wook, Seo Hyun-woo, Ryu Hyun-kyung |
| Eyelids | Korean: 눈꺼풀 | O Muel | Moon Seok-beom, Sung Min-chul, Lee Sang-hee |
| Intention | Korean: 그날, 바다 | Kim Ji-young | Jung Woo-sung |
| Snatch Up | Korean: 머니백 | Heo Joon-hyung | Kim Mu-yeol, Park Hee-soon, Lee Geung-young |
| Duck Town | Korean: 수성못 | Yu Ji-young | Lee Se-young, Kim Hyun-joon |
| Mothers | Korean: 당신의 부탁 | Lee Dong-eun | Im Soo-jung, Yoon Chan-young, Lee Sang-hee |
| Marionette | Korean: 나를 기억해 | Lee Han-wook | Lee Yoo-young, Kim Hee-won |
| True Fiction | Korean: 살인소설 | Kim Jin-muk | Ji Hyun-woo, Oh Man-seok, Lee Eun-woo |
| Champion | Korean: 챔피언 | Kim Yong-wan | Ma Dong-seok, Kwon Yul, Han Ye-ri |
| Love+Sling | Korean: 레슬러 | Kim Dae-woong | Yoo Hae-jin, Kim Min-jae, Lee Sung-kyung |
| The March for the Lost | Korean: 임을 위한 행진곡 | Park Ki-bok | Kim Kkot-bi, Kim Bu-seon |
| Burning | Korean: 버닝 | Lee Chang-dong | Yoo Ah-in, Steven Yeun, Jeon Jong-seo |
| Believer | Korean: 독전 | Lee Hae-young | Cho Jin-woong, Ryu Jun-yeol, Kim Joo-hyuk |
| Deja Vu | Korean: 데자뷰 | Ko Kyung-min | Nam Gyu-ri, Lee Chun-hee, Lee Kyu-han |
| Home | Korean: 홈 | Kim Jong-woo | Lee Hyo-je, Heo Joon-seok |
| The Accidental Detective: In Action | Korean: 탐정: 리턴즈 | Lee Eon-hee | Kwon Sang-woo, Sung Dong-il, Lee Kwang-soo |
| Student A | Korean: 여중생A | Lee Kyung-sub | Kim Hwan-hee, Kim Joon-myun |
| Loser's Adventure | Korean: 튼튼이의 모험 | Ko Bong-soo | Kim Choong-gil, Baek Seung-hwan, Shin Min-jae |
| Herstory | Korean: 허스토리 | Min Kyu-dong | Kim Hee-ae, Kim Hae-sook |
| Korean: 마녀 | Park Hoon-jung | Kim Da-mi, Jo Min-su, Choi Woo-shik, Park Hee-soon |
| I Have a Date with a Spring | Korean: 나와 봄날의 약속 | Baek Seung-bin | Kim Sung-kyun, Jang Young-nam, Kang Ha-neul |
| Sunset in My Hometown | Korean: 변산 | Lee Joon-ik | Park Jung-min, Kim Go-eun |
| The Soup | Korean: 식구 | Im Young-hoon | Shin Jung-geun, Yoon Park |
| The Whispering | Korean: 속닥속닥 | Choi Sang-hoon | So Joo-yeon, Kim Min-kyu, Kim Young |
| Land of Happiness | Korean: 행복의 나라 | Jung Min-kyu | Ji Yong-suk, Ye Soo-jung, Kim Si-eun, Gi Ju-bong |
| | Korean: 신비아파트: 금빛 도깨비와 비밀의 동굴 | Kim Byung-gab | Jo Hyeon-jeong, Kim Young-eun, Kim Chae-ha, Shin-Woo Shin |
| Korean: 인랑 | Kim Jee-woon | Gang Dong-won, Han Hyo-joo, Jung Woo-sung |
| | Korean: 신과함께: 인과 연 | Kim Yong-hwa | Ha Jung-woo, Ju Ji-hoon, Kim Hyang-gi, Ma Dong-seok |
| Bad Boss | Korean: 나쁜 상사 | Baek Jong-seok | Kim Jang, Kim Seo-young, Jung Mi-suk |
| The Spy Gone North | Korean: 공작 | Yoon Jong-bin | Hwang Jung-min, Lee Sung-min, Cho Jin-woong, Ju Ji-hoon |
| The Witness | Korean: 목격자 | Jo Kyu-jang | Lee Sung-min, Kim Sang-ho, Kwak Si-yang |
| On Your Wedding Day | Korean: 너의 결혼식 | Lee Seok-geun | Park Bo-young, Kim Young-kwang |
| Adulthood | Korean: 어른도감 | Kim In-sun | Uhm Tae-goo, Lee Jae-in, Seo Jeong-yeon |
| High Society | Korean: 상류사회 | Byun Hyuk | Park Hae-il, Soo Ae |
| Last Child | Korean: 살아남은 아이 | Shin Dong-suk | Choi Moo-sung, Kim Yeo-jin, Lee David |
| Deep | Korean: 딥 | Jo Sung-kyu | Choi Yeo-jin, Ryu Seung-soo |
| Monstrum | Korean: 물괴 | Heo Jong-ho | Kim Myung-min, Kim In-kwon, Lee Hye-ri, Choi Woo-shik |
| After My Death | Korean: 죄 많은 소녀 | Kim Ui-seok | Jeon Yeo-been, Seo Young-hwa, Ko Won-hee |
| Fengshui | Korean: 명당 | Park Hee-gon | Cho Seung-woo, Ji Sung, Kim Sung-kyun, Baek Yoon-sik, Moon Chae-won |
| The Great Battle | Korean: 안시성 | Kim Kwang-sik | Jo In-sung, Nam Joo-hyuk, Park Sung-woong |
| The Negotiation | Korean: 협상 | Lee Jong-seok | Son Ye-jin, Hyun Bin |
| The Soul-Mate | Korean: 원더풀 고스트 | Jo Won-hee | Ma Dong-seok, Kim Young-kwang, Lee Yoo-young |
| Dark Figure of Crime | Korean: 암수살인 | Kim Tae-kyun | Kim Yoon-seok, Ju Ji-hoon |
| Beautiful Vampire | Korean: 뷰티풀 뱀파이어 | Jeong Eun-gyeong | Jung Yeon-joo, Song Kang |
| Miss Baek | Korean: 미쓰백 | Lee Ji-won | Han Ji-min, Kim Shi-ah, Lee Hee-joon |
| Too Hot to Die | Korean: 배반의 장미 | Park Jin-young | Kim In-kwon, Jung Sang-hoon, Son Dam-bi, Kim Sung-cheol |
| Grass | Korean: 풀잎들 | Hong Sang-soo | Kim Min-hee, Jung Jin-young, Gi Ju-bong |
| Passing Summer | Korean: 늦여름 | Jo Sung-kyu | Im Won-hee, Jeon Seok-ho, Shin So-yul, Jung Yeon-joo |
| Rampant | Korean: 창궐 | Kim Sung-hoon | Hyun Bin, Jang Dong-gun |
| Intimate Strangers | Korean: 완벽한 타인 | Lee Jae-kyoo | Yoo Hae-jin, Cho Jin-woong, Lee Seo-jin, Yum Jung-ah |
| The Villagers | Korean: 동네사람들 | Im Jin-soon | Ma Dong-seok, Kim Sae-ron, Lee Sang-yeob |
| Ode to the Goose | Korean: 군산: 거위를 노래하다 | Zhang Lü | Park Hae-il, Moon So-ri, Jung Jin-young, Park So-dam |
| The Wrath | Korean: 여곡성 | Yoo Young-sun | Seo Young-hee, Son Na-eun, Park Min-ji, Lee Tae-ri |
| Unfinished | Korean: 출국 | Noh Gyu-yeob | Lee Beom-soo, Yeon Woo-jin, Lee Jong-hyuk |
| Happy Together | Korean: 해피 투게더 | Kim Jung-hwan | Park Sung-woong, Song Sae-byeok, Han Sang-hyuk |
| Beautiful Days | Korean: 뷰티풀 데이즈 | Yoon Jae-ho | Lee Na-young, Jang Dong-yoon, Oh Kwang-rok |
| Unstoppable | Korean: 성난황소 | Kim Min-ho | Ma Dong-seok, Song Ji-hyo |
| Youngju | Korean: 영주 | Cha Sung-duk | Kim Hyang-gi, Kim Ho-jung |
| Default | Korean: 국가부도의 날 | Choi Kook-hee | Kim Hye-soo, Yoo Ah-in, Heo Joon-ho, Jo Woo-jin, Vincent Cassel |
| Fantasy of the Girls | Korean: 소녀의 세계 | Ahn Jung-min | Roh Jeong-eui, Cho Soo-hyang, Kwon Na-ra |
| Door Lock | Korean: 도어락 | Lee Kwon | Gong Hyo-jin, Kim Ye-won, Kim Sung-oh |
| Revenger | Korean: 리벤져 | Lee Seung-won | Bruce Khan, Park Hee-soon, Yoon Jin-seo, Kim In-kwon |
| The Drug King | Korean: 마약왕 | Woo Min-ho | Song Kang-ho, Jo Jung-suk, Bae Doona |
| Swing Kids | Korean: 스윙키즈 | Kang Hyeong-cheol | Do Kyung-soo, Park Hye-soo, Oh Jung-se |
| Take Point | Korean: PMC: 더 벙커 | Kim Byung-woo | Ha Jung-woo, Lee Sun-kyun, Jennifer Ehle | |
