Sar Davan (Persian: سردوان, also Romanized as Sar Davān and Sardvān; also known as Sardāb, Shirdau, and Shīrdow)[1] is a village in Zohan Rural District, Zohan District, Zirkuh County, South Khorasan Province, Iran.

At the 2006 census, its population was 399, in 94 families.

[2] This Zirkuh County location article is a stub.

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