Västerbotten , known in English as West Bothnia or Westrobothnia, is a province (landskap) in the north of Sweden, bordering Ångermanland, Lapland, North Bothnia and the Gulf of Bothnia. It is famous for the cheese named after the province as well as the Vindelfjällens Nature Reserve, one of the largest nature reserves in Sweden.
The traditional provinces of Sweden serve no administrative or political purposes, but are historical and cultural entities. The administrative county, Västerbotten County, consists of the province and the southern part of Swedish Lappland.
On 18 January 1884 all provinces gained the rights to the rank of duchy and the arms can be represented with a ducal coronet. Blazon: "Azure Seme of Mullets Or a Reindeer in full course and hoofed Gules."
Västerbotten was historically divided into chartered cities and districts.
The historical province Västerbotten was divided in court districts.