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

Embassy of Vietnam in Portugal

Rua Santos o Velho no. 5
Lisbon
Portugal
1293
Phone:
+351-21-393-9100
+351-21-390-8121
Fax:
+351-21-393-9151

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

–          Visit Vietnam Embassy in Portugal 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.