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

Embassy of Vietnam in Copenhagen, Denmark
Gammel Vartov Vej 20, DK – 2900 Hellerup, Copenhagen, Denmark
Tel: (45) 3918 3932
Fax: (45) 3918 4171

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

–          Visit Vietnam Embassy in Denmark 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.