Family name Wan Salahuddin (Wan Salahuddin 
) , across the world, is an extremely rare last name. The surname Wan Salahuddin is characteristic of South-eastern Asia, particularly Malaysia, where it is a very rare surname. More prevalently, Wan Salahuddin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wan Salahuddin | Malaysia |