The official currency in Vietnam is Vietnam Dong (VND) which comes in different denominations: 1,000; 2,000; 5,000; 10,000; 20,000; 50,000; 100,000; 200,000 and 500,000.
You can exchange money at our airport or at some national banks (Vietcombank, Techcombank, TP Bank, etc.) or international banks (Shinhan Bank, Public Bank, ANZ, HSBC, etc.). Unofficial exchange places such as jewelry stores are not recommended. ATMs are easy to be found in major cities, but if you travel to rural areas, bring enough cash.