Vidsel (Swedish pronunciation: [ˈvîːdseːl])[2] is a locality situated in Älvsbyn Municipality, Norrbotten County, Sweden with 533 inhabitants in 2010.

Perhaps its earliest history is as a seasonal settlement, but permanent inhabitants have lived here since the 19th century.

RFN is the largest overland test range in Western Europe, consisting of 1,650 km2 of uninhabited forest and marshland, which can be extended by 1,500 km2 if required.

Because of its usage as a Swedish and European missile test site, this remote area is often listed in international weather forecasts and maps.

The site has been a test area for most Swedish flight developments, including Draken, Viggen and Gripen.