All over the world, Katsuyasu (Katsuyasu 
) is an extremely rare male first name. Also, Katsuyasu is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Katsuyasu | Japan, Taiwan, China, Brazil, United States |
| katsuyasu tachibana researcher (ORCID 0000-0002-6394-4063) |
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| katsuyasu saigo researcher ORCID ID = 0000-0001-9181-3194 |
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| katsuyasu kouda researcher |
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