The official currency of Vietnam is the Vietnamese dong, abbreviated as VND. The dong has been the currency since its introduction in the early 3rd century and has undergone several revaluations over time. The currency is subdivided into smaller units called hào, although these are no longer in use. Historically, the dong has experienced significant inflation, making it important for travelers and those living in Vietnam to monitor exchange rates. The dong is essential for everyday transactions, as it is used for purchasing goods and services throughout the country.