Aqa Bil-e Sofla (Persian: اقابيل سفلي, also Romanized as Āqā Bīl-e Soflá; also known as Āqā Bīl-e Pā’īn) is a village in Balaband Rural District, in the Central District of Fariman County, Razavi Khorasan Province, Iran. At the 2006 census, its population was 64, in 14 families.