The main currency used in Japan is the yen, symbolized by "¥" and abbreviated as JPY. The yen is one of the most traded currencies in the world and has its origins dating back to the late 19th century when the Meiji government introduced it to modernize Japan's economy. The Bank of Japan is responsible for issuing and regulating the currency. The yen is commonly used for transactions and savings within Japan, reflecting the country's economic status and stability. Fluctuations in the yen's value can impact international trade, making it a key factor in global financial markets.