Cognomen Duaij (Duaij 
) , all around the world, is a rare last name. The family name Duaij is characteristic of Western Asia, particularly Bahrain, where it is quite a rare surname, Kuwait, and Saudi Arabia, where it is a rare surname. Likewise, Duaij is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Duaij | Saudi Arabia, Philippines, Kuwait, Bahrain, France |
| mohammad al duaij Kuwaiti business man and entrepreneur (b. 1980) |
|