What is the official currency of Japan?

The official currency of Japan is the yen. The yen is the third most traded currency in the world, notable for its symbol "¥" and its code "JPY." It has been the official currency since it was established in 1871, replacing earlier currencies. The yen is widely used in various financial markets and plays a significant role in international trade and investment.

The other currencies listed are associated with different countries. The won is the currency of South Korea, the dollar is associated with multiple countries including the United States and Australia, and the euro is the currency used by many European Union countries. Therefore, the yen is distinctly recognized as Japan's official currency.