Gran is a municipality in Oppland county, Norway. It is part of the traditional region of Hadeland. The administrative centre of the municipality is the village of Jaren. There is also a village of Gran located within the municipality.

The municipality of Gran was established on 1 January 1838 (see formannskapsdistrikt). Brandbu was separated from Gran on 1 January 1897, but it was merged back into the municipality of Gran on 1 January 1962.

The municipality (originally the parish) is named after the old Gran farm (Old Norse: Grǫn), since the first church was built there. The name is identical with the word grǫn which means "spruce".

The coat-of-arms is from modern times. They were granted on 11 December 1987. The coat-of-arms is red with two gold triangles stretching upwards with a bottony cross on the tip of each triangle. It is meant to represent the spires of the medieval Sister Churches which are located in the municipality. The arms were designed by Kari Ruud Flem from Jevnaker.

The economy of the municipality was in 2002 of 24,098 kr in free income per inhabitant, and net debt per inhabitant was NOK 41,835 (also municipal economy, not private). Health care spendings represents about one third of the total budget, which is 7.5 per cent higher than the average for Norway.

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