Surname Arx (Arx 
, اركس 
) , throughout the world, is quite a rare cognomen. The last name Arx is habitual in Switzerland, where it is quite a common surname, Austria, where it is a rare surname, and Sweden. Not in comparison with a country's population, it is the most numerous in Switzerland, the United States, and Indonesia. Very seldom, Arx is the forename as well as the last name.
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| Arx | Taiwan, Switzerland, United States, Germany, Indonesia |
| اركس | Iraq |
| max von arx (b. 1827) |
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| ferdinand von arx (1842-1931), CH (b. 1842) |
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| constantin von arx (1847-1916), CH (b. 1847) |
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| rudolf von arx (b. 1851) |
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| alfred arx (b. 1854) |
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| max von arx (b. 1857) |
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| ferdinand von arx (1868-1944), CH (b. 1868) |
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kurt von arx Swiss politician (1921-1972), CH (b. 1921) |
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| hadwig von arx (1881-1970), CH (b. 1881) |
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| william stelling von arx D.Sc. Massachusetts Institute of Technology 1955, US (b. 1916) |
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| karl von arx footballer, CH (b. 1921) |
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| maja von arx CH (b. 1926) |
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| arx tourinho Brazilian lawyer, BR (b. 1947) |
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| jörg müller von arx CH (b. 1942) |
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| josé durán von arx (b. 1946) |
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