Family name Керш (Kersh 
, Kerch 
, Kersch 
) , around the world, is quite a rare cognomen. The cognomen Керш is characteristic of Luxembourg, where it is quite a rare surname, Austria, where it is a rare surname, and Bahrain. Not in comparison with a country's population, it is commonest in the United States, Germany, and Egypt. Much less frequently, Керш is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kersh | Australia, Egypt, Brazil, United States, United Kingdom |
| Kerch | Germany, Canada, Morocco, Brazil, United States |
| Kersch | Austria, Germany, Brazil, United States, United Kingdom |
| Керш | Russia, Ukraine, Kyrgyzstan |