Surname Raihen (Raihen 
) , across the world, is a rare family name. The surname Raihen is habitual in Southern Asia, particularly Bangladesh, where it is a very rare surname, and India, where it is an extremely rare surname. Much less frequently, Raihen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Raihen | India, Bangladesh |