Family name Masaro (Masaro 
) , around the world, is a rare cognomen. The cognomen Masaro is characteristic of Lithuania, where it is a rare surname, Tanzania, and Italy. In absolute terms, it is commonest in Tanzania, Italy, and Indonesia. Also, Masaro is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Masaro | Tanzania, Italy, India, Indonesia, Japan |
| anastasia masaro Canadian production designer, CA (b. 1974) |
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| masaro nakae researcher (ORCID 0000-0002-8575-4439) |
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| masaro yoshida researcher ORCID ID = 0000-0003-4867-3362 |
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