Tararan-e Pain () is a village in Bazarjan Rural District of the Central District of Tafresh County, Markazi province, Iran.
At the time of the 2006 National Census, the village's population was 69 in 25 households. The following census in 2011 counted 55 people in 21 households. The 2016 census measured the population of the village as 87 people in 46 households.