Bank of Japan Headquarters (日本銀行本店, Nippon Ginkō Honten) is the headquarter of Bank of Japan (BOJ), located in Nihonbashi, Chuo, Tokyo, Japan. It has been listed as one of Tokyo's 50 Architectural Heritage Sites.^[1]

BOJ headquarters consists of four buildings. The main building (本館) was designed by Tatsuno Kingo, based on the former main office of the National Bank of Belgium (Hôtel du Gouverneur), and completed in February 1896. On February 5, 1974, the building was listed as Important Cultural Property. ^[2] The annex building (別館) is also a neoclassical architecture, was designed by Tatsuno's disciple, Nagano Uheiji.

The new building (新館) was designed by Matsuda Hirata Architects . It has 10 floors overground and 5 floors underground. It was completed in 1973. The south annex building (南分館) is the home of Currency Museum of the Bank of Japan, and the institute for monetary and economic studies (IMES) is also located in the south annex building.