List of South Korean flags
This is a list of flags used in South Korea, from 1945 to the present.
National flags
| Flag | Date | Use | Description |
| Civil and state flag and ensign of the First Republic of South Korea. | This flag was designed by the first National Assembly. | ||
| Civil and state flag and ensign of the First, Second, Third, Fourth and the Fifth Republic of South Korea. | This flag was standardized by the National Flag Correction Committee, and announced by the Ministry of Education and Culture on 15 October 1949. The exact colors were not specified. | ||
| Civil and state flag and ensign of the Fifth and Sixth Republic of South Korea. | On 21 February 1984, with the enactment of regulations on the South Korean flag, the South Korean government re-designated the colors. The exact color was not specified. | ||
| Civil and state flag and ensign of the Sixth Republic of South Korea. | On 15 October 1997, the South Korean government officially specified the exact colors to be used on the flag via presidential decree. | ||
| present | Civil and state flag and ensign of South Korea. | On 30 May 2011, the South Korean government re-specified the colors. |
Flags of legislatures
Flags of subdivisions
North Korean provincial flags
As the South Korean government claims the territory of North Korea as its own, provincial flags also exist for the North Korean provinces that are claimed by South Korea. The following are flags of the five Korean provinces located entirely north of the Military Demarcation Line as according to the South Korean government, as it formally claims to be the sole legitimate government of the entire Korean Peninsula.| Flag | Name | Geocode | Description |
| North Hamgyeong Province | - | Flag with the emblem depicting Mount Baekdu and surrounded by Hibiscus syriacus | |
| South Hamgyeong Province | - | White symbolic Hibiscus syriacus insignia, inlaid with the word 함남 | |
| Hwanghae Province | - | White symbolic Hibiscus syriacus insignia, inlaid with the character 黄. | |
| North Pyeongan Province | - | Symbolic Taeguk insignia, with the word 평안북도 | |
| South Pyeongan Province | - | A cogwheel with a delta symbol representing north. |