Worldwide, ラッシュ (Rash 
, Rush , Lush 
, among others...) is a common epicene forename. The given name ラッシュ is characteristic of Aruba, where it is quite a common girly name, Israel, where it is quite a common predominantly boy's, but scarcely feminine name, and United Arab Emirates, where it is quite a rare gender-neutral name. Measured by absolute frequency, it most frequently occurs in India, the Democratic Republic of the Congo, and the United States. More prevalently, ラッシュ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rash, Rush | Germany, United Kingdom, United States, India, Iraq |
| Lush | Germany, United Kingdom, United States, India, Brazil |
| ラッシュ | Japan |
| Rusch | Germany, Indonesia, United Kingdom, United States, Brazil |
| Lasch, Rasch | Germany, United Kingdom, Australia, United States, Brazil |
ラッシュ is also a name for the fictitious and mythical characters: Rush Clovis , the fictional character from the Star Wars universe, Star Wars: The Clone Wars and Rush , the fictional dog-like Mega Man robot, Mega Man 3.