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Last name Kokun (Kokun , ก่อกุล, โกกอุ่น) , all over the world, is a rare cognomen. The surname Kokun is habitual in Oman, where it is quite a rare surname, Saudi Arabia, where it is a rare surname, and Bangladesh. Not in comparison with a country's population, it is the most numerous in Bangladesh, Turkey, and Oman. More frequently, Kokun is the forename as well as the last name.