Rana is a municipality in Nordland county, Norway. It is part of the Helgeland traditional region. The administrative centre of the municipality is the town of Mo i Rana, which houses the National Library of Norway. Other population centers in Rana include Alterneset, Båsmoen, Dunderland, Eiteråga, Flostrand, Hauknes, Mæla, Myklebustad, Nevernes, Røssvoll, Selfors, Skonseng, Storforshei, Utskarpen, and Ytteren.
The municipality of Rana was originally established in 1838 (see formannskapsdistrikt). However, it was divided into Nord-Rana and Sør-Rana in 1839. In 1844, Nord-Rana was renamed Mo and Sør-Rana was renamed Hemnes. The village of Mo was separated from the rural district of Mo and became a town and municipality of its own on 1 January 1923. At that Time, the rural district changed its name back to Nord-Rana. On 1 January 1964, the town of Mo (population: 9,616), the municipality of Nord-Rana (population: 11,636), the northern part of Sør-Rana (population: 697), and the Sjona area of Nesna (population: 543) were all merged together. The united municipality was named simply Rana.