Family name אוסט (Oest 
, אוסט 
) , worldwide, is quite a rare cognomen. The surname אוסט is characteristic of Denmark, where it is quite a rare surname, Netherlands, and Germany, where it is a rare surname. In absolute terms, it most frequently occurs in Germany, the United States, and Netherlands. Much less frequently, אוסט is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oest | Germany, Denmark, Sweden, United States, Netherlands |
| אוסט | Israel |