Cognomen Сихт (Sixt 
, Сихт 
, Siht 
) , all around the world, is quite a rare last name. The family name Сихт is habitual in Cayman Islands, where it is quite a common surname, Estonia, and Bermuda, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Germany, Hong Kong, and Austria. Very seldom, Сихт is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sixt | Germany, United States, Austria, Myanmar, Hong Kong |
| Сихт | Russia |
| Siht | France, Estonia, Bulgaria, United States, Ireland |