Hoseynabad-e Kalpu (Persian: حسين آباد کالپو)[a] is a village in Rezvan Rural District,[b] Kalpush District, Meyami County, Semnan province, Iran.

At the time of the 2006 National Census, the village's population was 3,242 in 734 households, when it was in the former Meyami District of Shahrud County.

[6] The 2016 census measured the population of the village as 3,514 people in 1,013 households, by which time the district had been separated from the county in the establishment of Meyami County.

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

This Meyami County location article is a stub.