Family name Sixt (Sixt 
, Сикст 
, Сихт 
) , in the world, is quite a rare last name. The cognomen Sixt is habitual in Cayman Islands, where it is quite a common surname, Bermuda, where it is quite a rare surname, and Hong Kong. Not in comparison with a country's population, it is commonest in Germany, Hong Kong, and Austria. Very seldom, Sixt is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sixt | United States, Myanmar, Austria, Germany, Hong Kong |
| Сикст | Ukraine |
| Сихт | Russia |
| sixt riederer (b. 1400) |
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sixt oelhafen von schöllenbach registrar of the Roman Chancellery of Frederick III. (b. 1466) |
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sixt z ottersdorfu Czech humanist, politician and translator, CZ (b. 1500) |
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| sixt manfeld CH (b. 1450) |
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| sixt birck 16th-century German humanist, DE (b. 1501) |
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| sixt oelhafen von schoellenbach (b. 1503) |
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| sixt candydus (b. 1532) |
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| sixt rauwolf (b. 1556) |
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| sixt werner vogt von altensumerau und prasberg (1575-1627), DE (b. 1575) |
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| sixt palma močidlanský CZ (b. 1569) |
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| sixt oelhafen von schöllenbach DE (b. 1610) |
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| sixt christian lipenius German librarian, DE (b. 1664) |
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sixt jakob von kapff German jurist, DE (b. 1735) |
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| johann lorenz sixt (b. 1710) |
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| sixt gottlieb kapff (b. 1724) |
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