Last name Niju (Niju 
) , in all the world, is quite a rare cognomen. The cognomen Niju is habitual in Japan, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Bahrain. In absolute terms, the name is most common in Japan, Bangladesh, and India. More frequently, Niju is the forename as well as the last name.
Mon, Gogoi, Jacob, James, Mathew, Saikia, Sharma, Baruah, Kanwar, Kanvar, Kalita, Kumari, Philip, George, Joseph, Thomas, Abraham, Vijayan, Shrestha, Krishnan, Hazarika, Varghese, Dutta, Narayanan, Rajan, Kumar, Ram, Raj, Das, Joy, Sekh, Bala, Baby, Bora, Khan, Paul, Pegu, Rana, Raju, Devi, Deka, Jose, John, Nair, Mohan, Singh, Borah, Patel, and Varughese