Doddakyathnahalli is a village in Krishnarajpet tehsil in district of Mandya, Karnataka, India. As per the data provided by Census of India in 2011, total population of Doddakyathnahalli was 580 which includes 268 males and 312 females. Doddakyathnahalli covers 424.02 ha area. Pincode of Doddakyathnahalli is 571436.