Cognomen Yasunaga (安永 
, Yasunaga 
, Ясунага 
) , in the entire world, is a rare family name. The surname Yasunaga is habitual in Japan, where it is a rare surname, Denmark, where it is a very rare surname, and China. In absolute terms, the name is most common in China, Japan, and the United States. More frequently, Yasunaga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 安永 | China |
| Yasunaga | Japan, China, United States, Canada, Brazil |
| Ясунага | Russia |
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matsudaira yasunaga daimyo of the Azuchi-Momoyama period to the early Edo period (b. 1562) |
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| togawa yasunaga (b. 1693) |
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| makino yasunaga (b. 1796) |
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| tōru yasunaga violinist, DE (b. 1951) |
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| yoshichika yasunaga researcher (ORCID 0000-0002-4858-6739) |
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| takeshi yasunaga researcher |
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| masafumi yasunaga researcher (ORCID 0000-0002-0545-0428) |
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| shin'ichiro yasunaga researcher |
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| teruo yasunaga researcher |
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| masahiro yasunaga researcher |
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| genta yasunaga researcher |
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| akitomo yasunaga researcher (ORCID 0000-0002-9924-4042) |
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| yasunaga yoshikawa researcher ORCID ID = 0000-0003-4257-3088 |
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| yoshichika yasunaga researcher ORCID 0000-0002-4858-0673 |
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| adam yasunaga researcher (ORCID 0000-0002-1984-0443) |
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