Bash Mahalleh-ye Lavandevil () is a village in Chelevand Rural District of Lavandevil District in Astara County, Gilan province, Iran.
Linguistic composition of the village.
At the time of the 2006 National Census, the village's population was 1,299 in 298 households. The following census in 2011 counted 1,369 people in 352 households. The 2016 census measured the population of the village as 1,296 people in 377 households.