Family name פוסטק (Postec 
, פוסטק 
) , across the world, is quite a rare surname. The last name פוסטק is characteristic of France, where it is quite a rare surname, Argentina, where it is a very rare surname, and Thailand, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in France, Argentina, and the United States. Very seldom, פוסטק is the forename as well as the last name.