Rezu Sofla
 Rezu Sofla (Persian: رضوسفلي‎ also Romanized as Reẕū Soflá; also known as Reẕū) is a village in Kakhk Rural District Kakhk District Gonabad County Razavi Khorasan Province Iran. At the 2006 census its population was 57 in 18 families.