Surname Дубай (Dubaj 
, Dubay 
, Дубай 
) , in the entire world, is quite a common family name. The family name Дубай is characteristic of Slovakia, where it is quite a rare surname, Trinidad and Tobago, and United Arab Emirates. Measured by absolute frequency, it is commonest in India, the United States, and Poland. Very seldom, Дубай is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dubaj | Poland, Brazil, United States, Slovakia, India |
| Dubay | Brazil, Nepal, Ethiopia, United States, India |
| Дубай | Kazakhstan, Ukraine, Belarus, Kyrgyzstan, Russia |
| Doubai | Morocco, Cameroon, United Arab Emirates, Algeria, France |