Surname Muddin (Muddin 
) , in the world, is quite a common cognomen. The cognomen Muddin is characteristic of Qatar, where it is quite a rare surname, Saudi Arabia, and Malaysia. Not in comparison with a country's population, the name is most common in India, Indonesia, and Saudi Arabia. Much less frequently, Muddin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Muddin | Malaysia, Indonesia, India, Saudi Arabia, Nepal |