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Cognomen Natsuko (Natsuko , 夏子 , ナツコ ) , in the entire world, is a common last name. The surname Natsuko is habitual in Japan, where it is quite a common surname, Malaysia, where it is a very rare surname, and China. Very seldom, Natsuko is the forename as well as the last name.
Ito, Fukuda, Fujita, Yamada, Uesugi, Makiguchi, Shimizu, Konishi, Enomoto, Hayashi, Yoshida, Murakami, Sakamoto, Nakamura, Nakagawa, Ishikawa, Ichihara, Watanabe, Yamamoto, Yamazaki, Matsumoto, Kobayashi, Nomura, Nakano, Takagi, Tanaka, Ono, Mori, Sato, Seki, Aoki, Kato, Kubo, Hara, Ueda, Maeda, Takahashi, Miura, Sakai, Ebine, Inoue, Ikeda, Obata, Sasaki, Suzuki, Kazuma, Kojima, Kimura, Saito, and Yamaguchi