Gyeongbokgung (Korean: 경복궁; Hanja: 景福宮), also known as Gyeongbokgung Palace or Gyeongbok Palace, was the main royal palace of the Joseon dynasty. Built in 1395, it is located in northern Seoul, South Korea. The largest of the Five Grand Palaces built by the Joseon dynasty, Gyeongbokgung served as the home of Kings of the Joseon dynasty, the Kings' households, as well as the government of Joseon.

Gyeongbokgung continued to serve as the main palace of the Joseon dynasty until the premises were destroyed by fire during the Imjin War (1592–1598) and abandoned for two centuries. However, in the 19th century, all of the palace's 7,700 rooms were later restored under the leadership of Prince Regent Heungseon during the reign of King Gojong. Some 500 buildings were restored on a site of over 40 hectares The architectural principles of ancient Korea were incorporated into the tradition and appearance of the Joseon royal court.

In the early 20th century, much of the palace was systematically destroyed by Imperial Japan. Since then, the walled palace complex is gradually being restored to its original form. Today, the palace is arguably regarded as being the most beautiful and grandest of all five palaces. It also houses the National Palace Museum of Korea and the National Folk Museum within the premises of the complex.

Gyeongbokgung was built three years after the Joseon dynasty was founded and it served as its main palace. With Mount Bugak as a backdrop and the Street of Six Ministries (today's Sejongno) outside Gwanghwamun Gate, the main entrance to the palace, Gyeongbokgung was situated in the heart of the Korean capital city. It was steadily expanded before being reduced to ashes during the Japanese invasion of 1592.

For the next 273 years the palace grounds were left derelict until being rebuilt in 1867 under the leadership of Regent Heungseon Daewongun. The restoration was completed on a grand scale, with 330 buildings crowded together in a labyrinthine configuration. Within the palace walls were the Outer Court (oejeon), offices for the king and state officials, and the Inner Court (naejeon), which included living quarters for the royal family as well as gardens for leisure. Within its extensive precincts were other palaces, large and small, including Junggung (the Queen's residence) and Donggung (the Crown Prince's residence).

Due to its status as the symbol of national sovereignty, Gyeongbokgung was demolished during the Japanese occupation of the early 20th century. In 1911, ownership of land at the palace was transferred to the Japanese Governor-General. In 1915, on the pretext of holding an exhibition, more than 90% of the buildings were torn down. Following the exhibition the Japanese leveled whatever still remained and built their colonial headquarters, the Government-General Building (1916–26), on the site.

Restoration efforts have been ongoing since 1990. The Government-General Building was removed in 1996 and Heungnyemun Gate (2001) and Gwanghwamun Gate (2006-2010) were reconstructed in their original locations and forms. Reconstructions of the Inner Court and Crown Prince's residence have also been completed.