Around the world, Реин (Reine 
, Rein 
, Reyn 
) is a widespread principally female, but very infrequently boy's first name. The forename Реин is characteristic of the Democratic Republic of the Congo, where it is a common female name, Mongolia, where it is quite a common unisex name, and Lebanon, where it is quite a common girly name (explore the name in all countries). Not in comparison with a country's population, the name is most common in the Democratic Republic of the Congo, France, and Cameroon. Much less frequently, Реин is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Reine | United States, Germany, Democratic Republic of the Congo, Cameroon, France |
| Rein | United States, Germany, Democratic Republic of the Congo, Myanmar, France |
| Reyn | United States, Myanmar, Germany, France, Indonesia |
| Реин | Russia, Kazakhstan |
Реин is also a name for the fictitious and mythical characters: Reine Murasame , the fictional character from Date A Live; Reine Klopka , character in Valérian and Laureline and Reine , the fictional character appearing in the movie « La reine-garçon », The Girl King.