Cognomen Roundy (Roundy 
) , in all the world, is quite a rare family name. The last name Roundy is habitual in the United States, where it is a rare surname, Canada, where it is a very rare surname, and Venezuela. Measured by absolute frequency, it most frequently occurs in the United States, Canada, and South Africa. Very seldom, Roundy is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Roundy | Philippines, Canada, South Africa, Venezuela, United States |
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shadrach roundy American mormon leader, US (b. 1789) |
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william rea roundy politician in Massachusetts, US (1823-1901), US (b. 1823) |
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| roundy coughlin American sportswriter, US (b. 1889) |
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| eddie roundy former US Coach, US (b. 1891) |
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| david roundy American scientist, US (b. 1973) |
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| bruce a. roundy range ecology researcher |
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| kevin alejandro roundy Ph.D. University of Wisconsin-Madison 2012 |
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| david roundy researcher |
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| joshua k. roundy researcher |
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| shad roundy researcher |
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| robin otho roundy Ph.D. Stanford University 1984 |
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| p. v. roundy |
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| christopher m roundy |
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| paul vere roundy |
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