is a park in Chiyoda City, Tokyo, Japan. It covers an area of 161,636.66m2 between the east gardens of the Imperial Palace to the north, the Shinbashi district to the southeast and the Kasumigaseki government district to the west.
The land was occupied by the estates of the Mōri clan and Nabeshima clan during the Edo period, and was used for army maneuvers during the Meiji period. It was converted to a public park in 1903.
On September 5, 1905 the park was the scene of the Hibiya Incendiary Incident a major city-wide riot that erupted in protest of the terms of the Treaty of Portsmouth which ended the Russo-Japanese War of 1904-1905.
The park is famous for the , a brick building built in Gothic style in 1929, which once housed the Domei Tsushin state wire service and its postwar successors Kyodo News and Jiji Press.
The park is also known for its open-air concert venue, , and for its tennis courts (for which reservations are hotly contested due to their proximity to the financial and government districts).
*Attorneys' Hall (Japan Federation of Bar Associations headquarters)
*Fukoku Seimei Building
*Imperial Hotel, Tokyo
*Ministry of the Environment
*Ministry of Health, Labour and Welfare
*Ministry of Justice
*Mizuho Bank Building
*NTT Hibiya Building
*Shinsei Bank Building
*Sumitomo Mitsui Banking Corporation Building
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』