Chajakhu
 Chajakhu (Persian: چاجاخو‎ also Romanized as Chājākhū; also known as Chāchākhū Chachakhoo Chā Chā Khow Chāh Akhur and Chāh Ākhvor) is a village in Momenabad Rural District in the Central District of Sarbisheh County South Khorasan Province Iran. At the 2006 census its population was 44 in 14 families.