Cognomen Cemm (Cemm 
) , all over the world, is a very rare family name. The surname Cemm is characteristic of the United Kingdom, where it is a very rare surname, Australia, and Turkey, where it is an extremely rare surname. Much less frequently, Cemm is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cemm | Australia, Turkey, United States, United Kingdom |