Masidar-e Sofla (, also Romanized as Māsīdar-e Soflá; also known as Māsīdar and Māsīdar-e Pā’īn) is a village in Sarshiv Rural District, Sarshiv District, Marivan County, Kurdistan Province, Iran. At the 2006 census, its population was 295, in 53 families. The village is populated by Kurds.

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