Surname Hirokawa (ヒロカワ 
, Hirokawa 
, Хирокава) , in all the world, is a rare cognomen. The last name Hirokawa is habitual in Taiwan, where it is a rare surname, Singapore, and Japan. In absolute terms, it most frequently occurs in the United States, Japan, and Taiwan. More prevalently, Hirokawa is the forename as well as the last name.
| VARIANT | COUNTRY |
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| ヒロカワ | Japan |
| Hirokawa | Brazil, Taiwan, Japan, China, United States |
| katsumi hirokawa (b. 1936) |
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| taishi hirokawa (b. 1950) |
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| yusuke hirokawa researcher (ORCID 0000-0002-0023-4224) |
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| k.e. hirokawa researcher |
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| j. hirokawa researcher |
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| jun hirokawa researcher |
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| naoki hirokawa researcher |
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| takatsugu hirokawa researcher (ORCID 0000-0002-3180-5050) |
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| junya hirokawa researcher |
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| junich hirokawa researcher |
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| nobutaka hirokawa researcher |
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| nao hirokawa Ph.D. Universität Innsbruck 2006 |
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| joy hirokawa Professor of music education |
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| jiro hirokawa |
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