Rajanasiriyur is a village in Belur tehsil in district of Hassan, Karnataka, India. As per the data provided by Census of India in 2011, total population of Rajanasiriyur was 4,597 which includes 2,283 males and 2,314 females. Rajanasiriyur covers 1050.84 ha area. Pincode of Rajanasiriyur is 573121.