Last name Roseau (Ros 
, Roseau 
, روسو 
) , across the world, is a common surname. The last name Roseau is habitual in Martinique, where it is quite a common surname, Andorra, and Brunei (explore the name in all countries). Measured by absolute frequency, the name is most common in Spain, Indonesia, and France. Likewise, Roseau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ros | Philippines, France, Spain, India, Indonesia |
| Roseau | France, Argentina, Brazil, United States, Democratic Republic of the Congo |
| روسو | Morocco, Egypt, Syria |
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sheila roseau Antigua and Barbuda activist, AG (b. 1957) |
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| maurice roseau French mathematician, FR (b. 1925) |
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| jacques roseau French activist, FR (b. 1938) |
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| gilbert roseau French politician, FR (b. 1942) |
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| michel roseau FR (b. 1965) |
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| charles roseau researcher |
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| willy roseau French bicycle racer, FR (b. 1988) |
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| jean-françois roseau French writer, FR (b. 1989) |
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| cécile roseau |
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