Chap Chap (Persian: چپ چپ)[a] is a village in Zanjanrud-e Pain Rural District of Zanjanrud District in Zanjan County, Zanjan province, Iran.

At the time of the 2006 National Census, the village's population was 677 in 143 households.

[4] The following census in 2011 counted 710 people in 179 households.

[5] The 2016 census measured the population of the village as 621 people in 173 households.

This Zanjan County location article is a stub.