Nord-Rana (historically: Mo herred) is a former municipality in Nordland county, Norway. The 3,980-square-kilometre (1,540 sq mi) municipality existed from 1839 until its dissolution in 1964. From 1839 until 1844, it was named Nord-Ranen, from 1844 until 1923, it was called Mo, and then from 1923 until 1964 it was named Nord-Rana. The former municipality was located at the innermost part of the Ranfjorden. It encompassed the eastern 90% of what is now Rana Municipality. The administrative centre was the village of Ytteren, just north of the town of Mo i Rana.^[3][4]

Rana Municipality was established on 1 January 1838 under the old formannskapsdistrikt law. Shortly afterwards, in 1839, the municipality was divided into Nord-Ranen and Sør-Ranen.^[3] In 1844, Nord-Ranen was renamed Mo. On 1 January 1923, the village of Mo was designated as a ladested and so it was separated from the rest of the municipality to become a municipality of its own. The new town of Mo (population: 1,305) kept the name Mo and the rest of the old municipality became known as Nord-Rana (bringing back the old name for the area).^[5]

During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee. On 1 January 1964, the municipality of Nord-Rana (population: 11,636) was merged with the town of Mo i Rana (population: 9,616), the part of the municipality of Sør-Rana located north of the Ranfjorden (population: 697), and the Sjona area of Nesna Municipality (population: 543) to create the large, new Rana Municipality.^[5]

While it existed, this municipality was responsible for primary education (through 10th grade), outpatient health services, senior citizen services, unemployment, social services, zoning, economic development, and municipal roads. During its existence, this municipality was governed by a municipal council of elected representatives, which in turn elected a mayor.^[8]

• List of former municipalities of Norway