Around the world, Toshiyasu (Toshiyasu 
) is a very rare boy's first name. The first name Toshiyasu is habitual in Eastern Asia, particularly Japan, where it is a very rare masculine name, and China, where it is an extremely rare male name. Much less frequently, Toshiyasu is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Toshiyasu | China, Spain, Japan, United States, Brazil |
| toshiyasu kuriyama (b. 1550) |
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| hosokawa toshiyasu daimyō (b. 1701) |
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toshiyasu kinoshita (b. 1832) |
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| toshiyasu maeda (b. 1935) |
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| toshiyasu suzuki researcher ORCID ID = 0000-0003-4572-2384 |
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| toshiyasu inuzuka researcher |
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| toshiyasu goto researcher |
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| toshiyasu sakane researcher (ORCID 0000-0002-6504-0623) |
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| toshiyasu sasaoka researcher (ORCID 0000-0003-3057-8674) |
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| toshiyasu nagao researcher |
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| toshiyasu amano researcher |
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| toshiyasu ogata researcher |
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| toshiyasu matsui researcher ORCID ID = 0000-0001-6244-9645 |
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| toshiyasu nakamura |
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| toshiyasu taniguchi researcher |
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Ito, Morita, Suzuki, Tanaka, Takagi, Fujita, Yamada, Shimizu, Hayashi, Sakamoto, Takeuchi, Nakamura, Nakajima, Watanabe, Yamanaka, Yamamoto, Yoshizawa, Matsumoto, Matsuyama, Kobayashi, Takahashi, Fukushima, Matsuo, Yasui, Okubo, Okada, Ota, Miki, Sato, Arai, Kato, Kono, Goto, Hara, Hino, Imai, Yamaguchi, Maeda, Saito, Sakai, Amano, Kawai, Kondo, Fujii, Inoue, Ishii, Ikeda, Iwata, Murai, and Hirabayashi