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Last name Boonsiri (บุญศิริ , Boonsiri , บุญสิริ ) , all around the world, is quite a common surname. The surname Boonsiri is characteristic of South-eastern Asia, particularly Thailand, where it is quite a common surname, Singapore, where it is a rare surname, and Malaysia, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in Thailand, Singapore, and the United States. Likewise, Boonsiri is the forename as well as the last name.