Molla Mahalleh () is a village in Gatab-e Shomali Rural District of Gatab District in Babol County, Mazandaran province, Iran.
At the time of the 2006 National Census, the village's population was 236 in 61 households. The following census in 2011 counted 591 people in 173 households. The 2016 census measured the population of the village as 724 people in 258 households.