Ru Sang
 Ru Sang (Persian: روسنگ‎ also Romanized as Rū Sang; also known as Kalāteh-ye Rū Sang and Rui Sang) is a village in Jazin Rural District in the Central District of Bajestan County Razavi Khorasan Province Iran. At the 2006 census its population was 15 in 5 families.