Tarom Sofla District (Persian: بخش طارم سفلی; meaning "Lower Tarom") is a district (bakhsh) in Qazvin County, Qazvin Province, Iran. At the 2006 census, its population was 15,409, in 4,145 families. The District has one city: Sirdan. The District has four rural districts (dehestan): Chuqur Rural District, Khandan Rural District, Kuhgir Rural District, and Niyarak Rural District.