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Cognomen Tanwar (Tanwar , ทันวา ) , across the world, is a common family name. The family name Tanwar is habitual in Western Asia, particularly Oman, where it is quite a common surname, United Arab Emirates, where it is quite a rare surname, and Bahrain. Not in comparison with a country's population, it is commonest in India, Saudi Arabia, and United Arab Emirates. Very seldom, Tanwar is the forename as well as the last name.