To visit Vietnam for citizens of Russia there is a visa-free entry, if the stay does not exceed 15 days. If the rest is more than 15 days, you need to issue a visa in Moscow. To do this you need: the original passport, 2 photos, personal data.

For the visa upon arrival, a copy of the invitation from the Vietnamese side, 2 photos, payment of the visa fee at the airport is required.

Details about the possibility of visa-free entry into the country and the receipt of a Vietnamese visa (including what is the "Letter" and what it eats) is described on the page "Visa to Vietnam."