The short answer is yes, but it is a little bit complicated.
Although it is illegal to set up a forex brokerage in Vietnam and to trade with a forex broker based in Vietnam, there are currently no laws or regulations around clients using offshore brokers. This means you can trade safely in Vietnam by using a major global forex broker.
Why did Vietnam ban forex trading?
The ban on foreign exchange buying and selling in Vietnam was added to manage the alternate fee of the Vietnamese dong. The Vietnamese dong has traditionally been plagued via inflation and so, as foreign exchange trading affects the fee of a currency, the State Bank of Vietnam determined to prohibit the practice.
Fortunately, the SBV did not restrict trading with reputable offshore forex brokers. With these brokers, you still cannot trade the Vietnamese dong, but you will have access to exciting trading opportunities.