Last name علاءالدین (Aladin 
, Alaaddin 
, علاءالدین 
) , globally, is quite a common family name. The family name علاءالدین is characteristic of Georgia, where it is quite a rare surname, Bosnia and Herzegovina, and Tunisia. Not in comparison with a country's population, the name is most common in Indonesia, Malaysia, and Algeria. More prevalently, علاءالدین is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Aladin | Algeria, Indonesia, Philippines, Tunisia, India |
| Alaaddin | United States, Malaysia, Egypt, Turkey, India |
| علاءالدین | Iran, Afghanistan, Sudan |
| Alouddin | Oman, India |
| رضا علاءالدین IR |
|