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Last name Kulsaya (กุลยา , Kulsaya ) , all around the world, is a very rare cognomen. The last name Kulsaya is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much more frequently, Kulsaya is the forename as well as the last name.
Supasin, Komkhum, Mutitasakul, Srisakda, Nillavong, Chotiwetsin, Promthong, and Chirapharatch