Some of these Scandinavian names permanently joined the pool of English names. Here is a short list of names:
Amund- Divine protection.
Anders- Scandinavian form of Andrew
Birgit- Strong, spirited.
Birgitt- Strong, spirited.
Birgitte- Strong, spirited.
Borg- From the castle.
Davin- The bright one from Finland
Dyre- A dear or precious one
Frans- From France, or a free man
Gamel- The old one.
Harald Army power, or ruler of the army
Hedda The contentious one.
There are several layers of first names in Finland. The earliest layers is the proto-Finnic name system. But since the earliest written records in Finland date from the 14th century, ie. definitely from the christian era, we don’t really know a lot from pagan Finnish names.