Family name Kawatani (Kawatani 
) , all around the world, is a very rare surname. The last name Kawatani is habitual in Brazil, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Kawatani is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kawatani | China, Brazil, United States |
| toyohiko kawatani botanist |
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| y. kawatani researcher |
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| yohei kawatani researcher (ORCID 0000-0002-8531-9488) |
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| yohei kawatani researcher (ORCID 0000-0002-5021-8521) |
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| ayako kawatani palaeontologist |
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Mr, Shoji, Shozo, Seiji, Alice, Akira, Bujin, Kazuo, Kachi, Koryu, Kokki, Kohei, Kenji, Kunio, Pedro, Jared, Jorge, Julio, Jitsu, Takao, Tadao, Teruo, Shuji, Sadao, Muneo, Masao, Ms, Ko, Man, Ana, Kay, Mari, Matt, Akio, Koji, Rosa, Norio, Gail, Luka, Toru, Eric, Ikuo, Iwao, Yuri, Yuki, Yuji, Maria, Manzo, Luiz, and Hideo