Last name Kostlin (Kostlin 
) , around the globe, is a very rare cognomen. The surname Kostlin is characteristic of Denmark, where it is a very rare surname, South Africa, and Germany, where it is an extremely rare surname. Very seldom, Kostlin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kostlin | Argentina, South Africa, United States, Denmark, Germany |
| ulrich kostlin (born 1952) (b. 1952) |
|