Family name Kähn (Kähn 
) , across the world, is a very rare cognomen. The family name Kähn is characteristic of Germany, where it is a very rare surname, and South Africa, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kähn | South Africa, Germany |
|
johannes kähn German author and veterinarian, DE (b. 1810) |
|
| wolfgang kähn (b. 1954) |
|
Kevin, Helmut, and Johannes-Martin