Arianshahr (Persian: آرين شهر)[a] is a city in and the capital of Sedeh District in Qaen County, South Khorasan province, Iran.

[4] It also serves as the administrative center of Sedeh Rural District.

[5] At the time of the 2006 National Census, the city's population was 3,051, residing in 834 households.

[7] The 2016 census recorded a population 3,729 people in 1,090 households.

This Qaen County location article is a stub.