Rathaina is a village in Domariyaganj tehsil in district of Siddharth Nagar, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Rathaina was 2,392 which includes 1,205 males and 1,187 females. Rathaina covers 171.02 ha area. Pincode of Rathaina is N/A.