Pir Zanuk (Persian: پيرزنوك, also Romanized as Pīr Zanūk and Pīrzenūk; also known as Bīrzanūk)[1] is a village in Fakhrud Rural District, Qohestan District, Darmian County, South Khorasan Province, Iran.

At the 2006 census, its population was 89, in 28 families.

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

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