The yen is the official currency of Japan. It is the third most traded currency in the foreign exchange market after the United States dollar and the euro.
Offical website: boj.or.jp
Symbol: ¥, 円, 圓
Central bank: Bank of Japan
Banknotes: JP¥10000, JP¥1000, JP¥2000, JP¥5000
Coins: JP¥500, JP¥10, JP¥100, JP¥50, JP¥1, JP¥5