Kotnabilli is a village in Gudem Kotha Veedhi tehsil in district of Visakhapatnam, Andhra Pradesh, India. As per the data provided by Census of India in 2011, total population of Kotnabilli was 214 which includes 107 males and 107 females. Kotnabilli covers 178 ha area. Pincode of Kotnabilli is 531133.