Larim Rural District () is a former administrative division of Gil Khuran District of Juybar County, Mazandaran province, Iran. Its capital was the village of Larim.
At the National Census of 2006, its population was 9,471 in 2,529 households. There were 9,931 inhabitants in 3,036 households at the following census of 2011. At the most recent census of 2016, the population of the rural district was 10,547 in 3,547 households. The largest of its 17 villages was Larim, with 5,300 people.
In 2023, Larim Rural District was elevated to the status of Larim District and divided into Larim-e Jonubi and Larim-e Shomali Rural Districts.