Cognomen Yoshioka (ヨシオカ 
, Yoshioka 
) , throughout the world, is quite a rare surname. The cognomen Yoshioka is habitual in Singapore, where it is quite a rare surname, Japan, where it is a rare surname, and Hong Kong. Measured by absolute frequency, this name is the most popular in Japan, Brazil, and the United States. More frequently, Yoshioka is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ヨシオカ | Japan |
| Yoshioka | Brazil, China, United States, Japan, Indonesia |
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kyōsuke yoshioka Japanese educator and bureaucrat (b. 1876) |
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| yoshioka shigesada Japanese swordsmith (1827-1893) (b. 1827) |
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shinkei yoshioka (b. 1885) |
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| kinʼichi yoshioka (b. 1902) |
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| hiroto yoshioka (b. 1902) |
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| hideichi yoshioka Japanese wrestler (b. 1914) |
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| tsuneo yoshioka Japanese dye artist, JP (b. 1916) |
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| hidetarō yoshioka (b. 1915) |
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| yoshitoyo yoshioka (b. 1916) |
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nobuyuki yoshioka Japanese runner, JP |
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| takashi yoshioka mineralogist, Nihon Cement Company (b. 1935) |
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| tadao yoshioka university professor and researcher active in Brazil (b. 1936) |
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nao yoshioka Japanese soul singer based in New York, JP (b. 1988) |
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| genji yoshioka (b. 1932) |
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hiyori yoshioka Japanese AV idol (b. 1999) |
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