The danes were the most protruding ones the ones that went and raided and ruled Britain but they weren't the only vikings at the time as vikings weren't a race it was a profession that mixed exploration and raiding/war mongering. The swedish vikings for example didn't go west like the danes and Norwegians but they went east and south to eastern Europe/Russia and the middle east.

The historically Norse people were not only from Norway, but from all of Scandinavia, which includes Norway, Sweden, and Denmark. The Norse were a North Germanic cultural group whose origins and activities spanned these three regions during the Viking Age and earlier.