Family name Жером (Jérôme 
, Jerom 
, Gerome ) , around the globe, is quite a common last name. The cognomen Жером is habitual in Haiti, where it is quite a rare surname, Luxembourg, and Belgium. Measured by absolute frequency, this name is the most popular in France, Nigeria, and Cameroon. More frequently, Жером is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jérôme | Belgium, Cameroon, Ivory Coast, France, Benin |
| Jerom | Belgium, Philippines, France, India, Cameroon |
| Gerome | Belgium, Ivory Coast, Philippines, France, Cameroon |
| Жером | Russia, Ukraine |