If you are staying legally in Denmark you can normally submit your application in Denmark.

If you are an EU/EEA citizen residing in Denmark under the EU rules on freedom of movement you can submit an application for family reunification - and have it processed - in Denmark.

If you are staying legally in Denmark on the grounds of a valid visa, extended visa, visa free stay, or extended visa free stay, you can submit an application for family reunification - and have it processed - in Denmark.

The same applies if you are residing legally in Denmark because you already hold another type of residence permit (for instance, on the grounds of work, study, or as an au pair).

Finally, you can submit an application for family reunification - and have it processed - in Denmark if you have appealed a ruling by the Immigration Service and this appeal has a delaying effect according to the Danish Aliens Act, section 33(3)(i).

However, you cannot have your application processed in Denmark if it is obvious that you do not meet the requirements for family reunification, or if you have previously applied for family reunification and were turned down because you did not meet the requirements. This means, that if you have previously been turned down for family reunification, you cannot enter Denmark on a visa stay or visa free stay and submit a new application for family reunification - unless your situation has changed in a way that enables you to meet the requirements.