Surname Alouddin (Alouddin 
, Алоуддин 
) , all over the world, is a very rare cognomen. The last name Alouddin is characteristic of Oman, where it is a rare surname, and India, where it is an extremely rare surname. More prevalently, Alouddin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alouddin | Oman, India |
| Алоуддин | Russia |