Nord-Frøya Municipality included the northern part of the island of Frøya and all of the small islands to the north and northeast such as Sula, Mausund, Froan, and Halten in what is now Frøya Municipality in Trøndelag county.

Although Frøya is a variant of the name of the Norse goddess Freyja, the Old Norse form of the name of the island was Frøy or Frey (the ending -a in the modern form is actually the definite article - so the meaning of Frøya is 'the Frøy').

Until 1906, the name of the island and predecessor municipality was spelled Frøien (-en is the definite article in Danish-Norwegian).

On 3 November 1917, a royal resolution changed the spelling of the name of the municipality to Nord-Frøya.

At the time of the municipal dissolution, it was part of the Frøya prestegjeld and the Sør-Fosen prosti (deanery) in the Diocese of Nidaros.

The municipal council (Herredsstyre) of Nord-Frøya was made up of 29 representatives that were elected to four year terms.