Family name Spiess (Spiess 
, สายลับ 
, Шпис 
) , across the world, is a common cognomen. The surname Spiess is habitual in Western Europe, particularly Switzerland, where it is quite a common surname, Austria, and Germany, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Germany, Switzerland, and the United States. Very seldom, Spiess is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Spiess | Germany, France, Switzerland, United States, Austria |
| สายลับ | Thailand |
| Шпис | Kazakhstan, Russia, Kyrgyzstan, Ukraine |
| Spieß | Austria, United Kingdom, Germany, United States |
| hans spiess DE (b. 1440) |
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| hans spiess Swiss stonemason, builder and architect, CH (b. 1500) |
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meinrad spiess German composer and music theorist, DE (b. 1683) |
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| thomas spiess (b. 1642) |
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| ignatius spiess (b. 1676) |
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| johann martin spiess DE (b. 1691) |
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| christian heinrich spiess German writer, DE (b. 1755) |
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ludwik spiess Polish pharmacist (1820-1896), PL (b. 1820) |
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| johann christoph spiess (b. 1771) |
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joseph spiess French engineer (1838-1917), FR (b. 1838) |
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| henryk bogumir spiess (b. 1785) |
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| gustav adolph spiess german physician, DE (b. 1802) |
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| louis-moïse spiess CH (b. 1800) |
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| franz spiess Prussian district deputy and district administrator of the Erkelenz district, DE (b. 1811) |
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august von spiess Romanian writer, RO (b. 1864) |
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