Zadonbeh-ye Pain (, also Romanized as Zādonbeh-ye Pā’īn; also known as Zādan Beg Pāīn and Zādonbeh) is a village in Barakuh Rural District, Jolgeh-e Mazhan District, Khusf County, South Khorasan Province, Iran. At the 2006 census, its population was 9, in 4 families.

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