Cognomen Зост (Soest 
, Зост 
) , worldwide, is quite a rare last name. The last name Зост is characteristic of Western Europe, particularly Netherlands, where it is quite a common surname, Belgium, where it is quite a rare surname, and Austria, where it is a rare surname. Measured by absolute frequency, the name is most common in Netherlands, Germany, and the United States. Much less frequently, Зост is the forename as well as the last name.