Esfarvarin District is a district (bakhsh) in Takestan County, Qazvin Province, Iran. At the 2006 census, its population was 28,845, in 6,583 families. The District has one city: Esfarvarin. The District has two rural districts (dehestan): Ak Rural District and Khorramabad Rural District. Most people of Esfarvarin District is Tat and speak to Tati.