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Family name Ninan (Ninan , นินจา ) , in all the world, is quite a common last name. The last name Ninan is characteristic of Western Asia, particularly United Arab Emirates, where it is quite a common surname, Qatar, where it is quite a rare surname, and Kuwait. In absolute terms, it is the most numerous in India, United Arab Emirates, and the United States. Also, Ninan is the forename as well as the last name.