Norsemen
Norsemen (the Norse) is the indigenous or ancient name for the people of Scandinavia, including (but not limited to) the Vikings
The meaning of Norseman was 'people from the North' and was applied primarily to people from Scandinavia, including the areas which today are part of Denmark, Norway, Sweden, Finland, Russia and northern Germany.
Norse, Norseman, and Normans were all terms in use during the period from the late 8th century to the 11th century, while Norse invaders and explorers were also (and now, more famously) known as Vikings.
Norsemen can also be used to refer to the group of people as a whole who speak one of the North Germanic languages as their native language. (Norse, in particular, refers to a language belonging to the North Germanic branch of Indo-European, especially Danish, Icelandic, or Norwegian in their earlier forms.)
For details, see the following articles: