Gahuni is a village in Mehnagar tehsil in district of Azamgarh, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Gahuni was 2,303 which includes 1,084 males and 1,219 females. Gahuni covers 367.04 ha area. Pincode of Gahuni is 276204.