Worldwide, Masaharu (Masaharu 
, マサハル , Масахару 
) is quite a rare boy's forename. The first name Masaharu is habitual in Japan, where it is a rare boy's name, Brazil, and India, where it is a very rare boy's name. More prevalently, Masaharu is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Masaharu | Brazil, India, Japan, United States, China |
| マサハル | Japan |
| Масахару | Russia, Ukraine |
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masaharu oda (b. 1492) |
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| abe masaharu (b. 1637) |
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| matsunami masaharu (b. 1665) |
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| matsudaira masaharu (1725-1782) (b. 1725) |
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honda masaharu (b. 1813) |
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| honda masaharu (b. 1767) |
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mashiyama masaharu (1861-1929) (b. 1861) |
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| aoyama masaharu Japanese, 1893–1969 (b. 1893) |
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| masaharu imai (b. 1884) |
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| masaharu fukushima (b. 1913) |
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| masaharu ishii (b. 1916) |
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| masaharu itō Japanese medical officer and civil servant (b. 1942) |
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| masaharu naruse (b. 1946) |
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| masaharu hoshi (b. 1947) |
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| masaharu kumasiro (b. 1947) |
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