The Eight Gates of Seoul are a series of historic gates located in Seoul, South Korea. Two of the gates are now destroyed, although the others are still standing. The gates were constructed between 1396 and 1398, and allowed access to the city, which was surrounded by the Fortress Wall during the Joseon period.

Seoul, officially Seoul Special City, is the capital of the Republic of Korea (ROK), commonly known as South Korea, and the country's most extensive urban center. The broader Seoul Capital Area, encompassing Gyeonggi province and Incheon metropolitan city, emerged as the world's fourth largest metropolitan economy in 2014, trailing only Tokyo, New York City, and Los Angeles, hosting more than half of South Korea's population. Although Seoul's population peaked at slightly over 10 million, it has gradually decreased since 2014, standing at approximately 9.97 million residents as of 2020. Seoul is the seat of the South Korean government.