Bank of Japan
- Country: Japan
- Type: Bank
- Website: www.boj.or.jp
- Update: 05-02
The Bank of Japan (Bank of Japan; Japanese: にっぽんぎんこう; abbreviation: Nippon Bank) is the central bank of Japan, established in 1882 and headquartered in Nihonbashi, Chuo-ku, Tokyo, whose main duties are to issue and manage the Japanese yen, implement monetary policy, ensure the stability of the financial system, and provide settlement services.