Cognomen ジェローム (Jerome 
, Jérôme 
, Gerome , among others...) , in the entire world, is a common surname. The family name ジェローム is habitual in Grenada, where it is quite a common surname, Aland Islands, and Haiti (explore the name in all countries). Measured by absolute frequency, this name is the most popular in Nigeria, the United States, and France. More prevalently, ジェローム is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gerome, Jerome | Nigeria, Philippines, France, United States, South Africa |
| Jérôme | Nigeria, Belgium, France, Cameroon, United States |
| Jérome | Belgium, France, Ivory Coast, United States, South Africa |
| ジェローム | Japan |