The citizens of the Russian Federation do not need a visa to enter Vietnam for up to 15 days. If the time spent in the country exceeds 15 days, the visa must be issued. You can do this in the Consulate of Vietnam in Moscow, or arrange it on arrival at one of the international airports in Vietnam.

15 days from the day of arrival in Vietnam there is from the day of passing the passport control). Even if staying in Vietnam for more than 15 days is a simple process that takes only a few days.