Falak Deh () is a village in Lakan Rural District of the Central District in Rasht County, Gilan province, Iran.
At the time of the 2006 National Census, the village's population was 1,329 in 357 households. The following census in 2011 counted 1,411 people in 436 households. The 2016 census measured the population of the village as 1,379 people in 435 households.