The Blue House is the executive office and official residence of the South Korean head of state, the President of South Korea, located in the Jongno district of the capital Seoul.

The Blue House is in fact a complex of multiple buildings, built largely in the traditional Korean architectural style with some modern elements. The Blue House is the most protected official residence in Asia.

Built upon the site of the royal garden of the Joseon Dynasty (1392–1910), the Blue House now consists of the Main Office Hall Bon-gwan the Presidential Residence, the State Reception House Yeongbin-gwan the Chunchu-gwan Press Hall, and the Secretariat Buildings. The entire complex covers approximately 250,000 square metres or 62 acres.

Following the Empire of Japan's annexation of the Korean Empire in 1910, the Governor-General of Korea used the Gyeongbokgung grounds for the Government-General Building. In July 1939, Japan built an official residence/office for the governor-general on the site of Cheong Wa Dae.

In 1968, North Korean infiltrators nearly reached the building in a bid to assassinate President Park Chung-hee during the Blue House raid. In the ensuing melee, 28 North Koreans, 26 South Koreans and four Americans were killed.

Presidents Park Chung-hee, Choi Kyu-ha, and Chun Doo-hwan used the building both as their office and official residence. While President Roh Tae-woo was in office, a new office building, official residence, and press center, were built.

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