Family name Реин (Reine 
, Rein 
, Reyn 
) , around the world, is a common last name. The surname Реин is habitual in Myanmar, where it is quite a common surname, Reunion, and Estonia (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in Myanmar, Germany, and the United States. More prevalently, Реин is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Reine | Germany, France, Democratic Republic of the Congo, United States, Cameroon |
| Rein | Germany, France, Democratic Republic of the Congo, United States, Myanmar |
| Reyn | Germany, France, Indonesia, United States, Myanmar |
| Реин | Russia, Kazakhstan |