Siyantanr is a village in Karma Tanr Vidyasagar tehsil in district of Jamtara, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Siyantanr was 862 which includes 446 males and 416 females. Siyantanr covers 186 ha area. Pincode of Siyantanr is 815352.