Getting married when one of us is a foreign citizen
You do not need to have a residence permit in Norway or to be a Norwegian citizen to get married in Norway, but your stay in Norway must be legal. In this case, a legal stay can for example mean that you have a residence permit, residence as an EU/EEA national, a visitor visa or a valid visa-free stay.
Before you can get married in Norway you must get a certificate which shows that you fulfil the conditions for entering into marriage (prøvingsattest), which is valid for 4 months. You must present this certificate to the person who is officiating the marriage.
On the Norwegian Tax Administration website you can find information about (external website) what documents you must send to the Tax Administration in order to obtain the certificate. (external website)
There is a waiting time for being issued a certificate, so please make sure you leave plenty of time before the wedding.