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Surname Insook (Insook , อินทร์สุข ) , throughout the world, is quite a rare cognomen. The cognomen Insook is characteristic of Thailand, where it is quite a rare surname, Germany, where it is an extremely rare surname, and Canada. Measured by absolute frequency, it is commonest in Thailand, China, and the United States. Likewise, Insook is the forename as well as the last name.
Ma, Moon, Shin, Song, Choi, Choe, Chun, Baik, Kang, Kwon, Park, Jang, Jeon, Jung, Hong, Yang, Yoon, Chang, Chung, Jeong, Hwang, Manalo, Yun, Yoo, You, Han, So, An, Ko, Jo, Ju, Oh, Yu, Yi, Suh, Seo, Drinan, Son, Ahn, Cho, Bae, Koo, Kim, Lee, Lim, Jee, Jun, Nam, Auh, and Wessels