Karchambu-ye Shomali Rural District () is in Karchambu District of Buin Miandasht County, Isfahan province, Iran. Its capital is the village of Kerch.
At the National Census of 2006, its population (as a part of the former Buin Miandasht District of Faridan County) was 3,293 in 734 households. There were 2,446 inhabitants in 754 households at the following census of 2011. At the most recent census of 2016, the population of the rural district was 1,991 in 732 households, by which time the district had been separated from the county in the establishment of Buin Miandasht County. The largest of its 10 villages was Hendukosh, with 598 people.