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Last name Khuna (Khuna , คุณา , คูนา ) , globally, is quite a rare cognomen. The cognomen Khuna is characteristic of Thailand, where it is quite a rare surname, Nepal, where it is a rare surname, and Malaysia, where it is a very rare surname. In absolute terms, this name is the most popular in Thailand, Nepal, and India. Likewise, Khuna is the forename as well as the last name.