Cognomen Ruehle (Ruehle 
, Rühle 
) , in the entire world, is quite a common last name. The surname Ruehle is habitual in Germany, where it is quite a rare surname, the United States, where it is a rare surname, and Czechia. Measured by absolute frequency, it is the most numerous in Germany, the United States, and Canada.
| VARIANT | COUNTRY |
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| Ruehle | Spain, Canada, Italy, United States, Germany |
| Rühle | Czechia, United States, United Kingdom, Germany, South Africa |
| john v. ruehle American politician, US (b. 1812) |
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| george dewey ruehle botanist (1898-1962) (b. 1898) |
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dieter ruehle American stadium organist, US (b. 1968) |
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| marisa d ruehle researcher |
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| william harold ruehle Ph.D. University of California, Los Angeles 1963 |
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| sabine ruehle researcher |
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| brandon ruehle parasitologist in New Zealand |
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| patricia f. ruehle Peerage person ID=328739 |
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| m a ruehle researcher |
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