Family name Rosmarin (Rosemary 
, Rozemarijn 
, Rosmarin 
) , in the world, is a widespread cognomen. The family name Rosmarin is characteristic of Nigeria, where it is quite a common surname, Ghana, where it is quite a rare surname, and Montenegro. Measured by absolute frequency, it is commonest in Sub-Saharan Africa, particularly Nigeria, Uganda, and Ghana. More prevalently, Rosmarin is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Rosemary | Nigeria, Tanzania, United Kingdom, United States, Brazil |
| Rozemarijn | Belgium, Netherlands, Germany, United States, Venezuela |
| Rosmarin | Philippines, Peru, United States, India, Venezuela |
| Rozmarin | Czechia, Germany, France, Canada, United States |
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henryk rosmarin Polish lawyer (1882-1955), PL (b. 1882) |
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| aaron rosmarin (b. 1896) |
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| ike rosmarin (b. 1915) |
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abby rosmarin American model and writer, US (b. 1986) |
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| leonard rosmarin Canadian professor of French literature, novelist, CA (b. 1953) |
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| cari rosmarin visual artist, US (b. 1954) |
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| susie rosmarin (b. 1950) |
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| kelly bayer rosmarin Australian businesswoman |
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| david rosmarin researcher (ORCID 0000-0003-2786-0708) |
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| david h rosmarin researcher |
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| david h. rosmarin American Psychologist |
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| rosmarin zacher researcher (ORCID 0000-0001-5411-145X) |
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