Pain Bisheh Sar (Persian: پائين بيشه سر, also Romanized as Pā’īn Bīsheh Sar; also known as Bīsheh Sar Pā’īn) is a village in Feyziyeh Rural District, in the Central District of Babol County, Mazandaran Province, Iran. At the 2006 census, its population was 2,849, in 739 families.