Family name Reiser (Reiser 
, Райзер 
, ريزر, among others...) , throughout the world, is a common surname. The family name Reiser is habitual in Western Europe, particularly Luxembourg, where it is quite a common surname, Germany, and Switzerland, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Germany, the United States, and France. Very seldom, Reiser is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Reiser | United States, Switzerland, France, Austria, Germany |
| Райзер | Ukraine, Russia, Kazakhstan |
| רייזר | Israel |
| Рейсер | Russia, Kazakhstan |
| friedrich reiser German theologian, DE (b. 1401) |
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heinrich reiser German advocate (1566-1629), DE (b. 1566) |
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| felicitas reiser spouse of Georg Endris and the goldsmith Melchior Bayr, daughter of the goldsmith Hans Reiser (b. 1550) |
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anton reiser German theologian, DE (b. 1628) |
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| konrad reiser (b. 1576) |
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| ignaz reiser German sculptor, DE (b. 1700) |
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| anders von reiser svedish nobleman *1701, SE (b. 1701) |
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| carl friederich reiser DK (b. 1718) |
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| sebastian jacob wilhelm reiser DE (b. 1742) |
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| otmar reiser politician, mayor of Maribor (1792-1868), DE (b. 1792) |
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karl august reiser German teacher, DE (b. 1853) |
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| leonhard reiser (b. 1801) |
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otmar reiser Austrian ornithologist, AT (b. 1861) |
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| heinrich reiser DE (b. 1805) |
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| matthäus reiser Austrian jurist and politician, DE (b. 1830) |
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