Surname Selahuddin (Selahuddin 
) , across the world, is an extremely rare cognomen. The family name Selahuddin is habitual in Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname. Likewise, Selahuddin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Selahuddin | Malaysia, United States, India |