Halvan (Persian: حلوان)[a] is a village in, and the capital of, Pir Hajat Rural District of the Central District of Tabas County, South Khorasan province, Iran.

[4] At the time of the 2006 National Census, the village's population was 569 in 204 households, when it was in Yazd province.

[6] The 2016 census measured the population of the village as 418 people in 138 households, by which time the county had been separated from the province and become a part of South Khorasan province.

[7] It was the most populous village in its rural district.

This Tabas County location article is a stub.