Surname Koschu (Koschu 
) , worldwide, is a very rare last name. The cognomen Koschu is habitual in Austria, where it is a rare surname, Germany, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Koschu | Austria, United States, Germany |
| dagmar koschu |
|
|
| edward koschu |
|