Finnmark (Norwegian: [ˈfɪ̀nːmɑrk] ; Northern Sami: Finnmárku [ˈfinːˌmaːrːhkuː]; Kven: Finmarkku; Finnish: Finnmarkin lääni; Russian: Финнмарк) is a county in northern Norway. By land, it borders Troms county to the west, Finland's Lapland region to the south, and Russia's Murmansk Oblast to the east, and by water, the Norwegian Sea (Atlantic Ocean) to the northwest, and the Barents Sea (Arctic Ocean) to the north and northeast.
The county was formerly known as Finmarkens amt or Vardøhus amt. Since 2002, it has had two official names: Finnmark (Norwegian) and Finnmárku (Northern Sami). It is part of the Sápmi region, which spans four countries, as well as the Barents Region, and is Norway's second-largest and least populous county.