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Cognomen Klahan (Klahan , กล้าหาญ) , throughout the world, is quite a rare surname. The family name Klahan is habitual in Thailand, where it is quite a rare surname, Singapore, where it is a rare surname, and Germany, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Thailand, the United States, and Singapore. Much less frequently, Klahan is the forename as well as the last name.
Mox, Pisit, Decha, Direk, Lotte, Nicha, Nirat, Nirut, Isara, Isree, Orada, Oraya, Winai, Wiwat, Uthai, Ukrid, Maiiam, Samart, Sampan, Samran, Sayfon, Sunisa, Parin, Sumeth, Kanya, Ampha, Suk, Joy, Jom, Ern, Stee, Anan, Aree, Arun, Arya, Phol, Jack, Taya, Manit, Mutta, Sanit, Shata, Sunan, Subun, Sumet, Arada, Aruni, Athit, and Suvipa