Surname Mostaza (Mostaza 
, Mustasa 
, Mostasa 
) , in the world, is quite a rare cognomen. The last name Mostaza is habitual in Philippines, where it is quite a rare surname, Spain, where it is a rare surname, and Argentina. Much less frequently, Mostaza is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mostaza | Spain, United States, Philippines, Argentina, India |
| Mustasa | Canada, United States, Malaysia, Philippines, India |
| Mostasa | United Kingdom, Spain, Canada, United States, Philippines |
| bartolomé mostaza Spanish journalist (1907-1982), ES (b. 1907) |
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| manuel pedragosa i mostaza Spanish businessperson and composer, ES (b. 1922) |
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| montse mostaza actress, ES (b. 1953) |
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| esther fernández mostaza (b. 1964) |
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| guille mostaza Spanish singer, ES (b. 1977) |
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| juan carlos mostaza Spanish film director, ES (b. 1979) |
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| maría esther fernández mostaza researcher (ORCID 0000-0002-2335-0674) |
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