Challu (Persian: چالو)[a] is a village in, and the capital of, Mehraban-e Olya Rural District of Shirin Su District, Kabudarahang County, Hamadan province, Iran.

[4] At the time of the 2006 National Census, the village's population was 1,173 in 284 households.

[5] The following census in 2011 counted 1,155 people in 334 households.

[6] The 2016 census measured the population of the village as 769 people in 256 households.

This Kabudarahang County location article is a stub.