Norrbotten County (Swedish: Norrbottens län, Meänkieli/Finnish: Norrbottenin lääni, Northern Sami: Norrbottena leatna) is the northernmost county or län of Sweden. It is also the largest county by land area, almost a quarter of Sweden's total area. It shares borders with Västerbotten County to the southwest, the Gulf of Bothnia to the southeast, the counties of Nordland and Troms in Norway to the northwest, and Lapland Province in Finland to the northeast.
The name "Norrbotten" is also used for a province of the same name. Norrbotten province covers only the eastern part of Norrbotten County with the inland mostly belonging to the Swedish Lapland province (Lappland).
