The Romanian Leu is the official currency of Romania. It is abbreviated as RON and is subdivided into 100 bani. The currency symbol for the leu is "lei." The leu has been in use since the 19th century and has undergone several changes, including redenominations. The National Bank of Romania is responsible for issuing and regulating the leu. Banknotes come in various denominations, featuring notable Romanian figures and cultural symbols. The leu is an important part of Romania's economy and is used in everyday transactions throughout the country.