Kalashem-e Bala (Persian: كلاشم بالا) is a village in Molla Sara Rural District of the Central District of Shaft County, Gilan province, Iran.

At the 2006 National Census, its population was 1,928 in 523 households. The following census in 2011 counted 2,058 people in 633 households. The latest census in 2016 showed a population of 1,732 people in 595 households. It was the most populous village in its rural district.