Mirza Kuchek Janghli District () is in Sowme'eh Sara County, Gilan province, Iran. Its capital is the city of Gurab Zarmikh.
At the time of the 2006 National Census, the district's population was 24,862 in 6,379 households. The following census in 2011 counted 23,086 people in 6,857 households. The 2016 census measured the population of the district as 21,139 inhabitants in 7,014 households.