List of 2017 box office number-one films in South Korea

The following is a list of 2017 box office number-one films in South Korea. When the number-one film in gross is not the same as the number-one film in admissions, both are listed.

Highest-grossing films
As of December 31, 2017


 * *Continue to screening in 2018
 * **Admissions showed was not total admissions, but admissions by the last day of the year.