It’s great that there is one office of Vietnam embassy in Copenhagen, Denmark.
Up to now, Vietnam’s embassy in Copenhagen is the only Vietnamese representation in Denmark. This office allows your visa issuance, legalization requests to be processed conveniently. You can find the contact details of this embassy below:
Regarding visa for Vietnam, in addition to embassy visa, citizens and residents of Denmark has an alternative of getting a visa on arrival. You can see their brief below:
For details, you may also read: