Ghattadahalli 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 Ghattadahalli was 2,494 which includes 1,261 males and 1,233 females. Ghattadahalli covers 1498.42 ha area. Pincode of Ghattadahalli is 573121.