From Bulgaria, visitors can apply for a visa through one of the embassy of Vietnam in Bulgariabelow or apply for a Vietnam visa  online. Here below is the specific address of Vietnam Embassy you may concern:

Embassy of Vietnam in Sofia, Bulgaria
#1, Jetvarka St., Sofia 1113, Bulgaria
Tel: (359) 2963 2609
Fax: (359) 2963 3658

Besides, citizens in Bulgaria can select among 3 options to get visa to Vietnam:

–          Visit Vietnam Embassy in Bulgaria or in any other countries to get Vietnam visa done there.

–          Apply for Vietnam visa on arrival at https://vietnamvisaonentry.com/apply-online/ and pick up your visa at one of 3 international airports in Vietnam

–          Apply for Vietnam visa code at https://vietnamvisaonentry.com/apply-online/ and get visa stamped at Vietnam Embassy where you wish to pay a visit to.