Family name Рем (Rehm 
, Rem 
, Рем 
) , across the world, is a common cognomen. The surname Рем is habitual in Germany, where it is quite a common surname, Belize, where it is quite a rare surname, and Tunisia. Measured by absolute frequency, it is the most numerous in Germany, Pakistan, and the United States. Also, Рем is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rehm | Germany, Egypt, Pakistan, United States, Saudi Arabia |
| Rem | Germany, Egypt, Pakistan, United States, Syria |
| Рем | Ukraine, Kazakhstan, Belarus, Russia, Kyrgyzstan |
| Rehme | Germany, Pakistan, United States, India, Switzerland |