Esfezar (Persian: اسفزار)[a] is a village in Mud Rural District of Mud District, Sarbisheh County, South Khorasan province, Iran.

At the time of the 2006 National Census, the village's population was 460 in 131 households.

[5] The 2016 census measured the population of the village as 394 people in 132 households.

It was the most populous village in its rural district.

This Sarbisheh County location article is a stub.